The Ahl al-Bait (AS) put great emphasis on Ziaraat of the Chief of the Martyrs Imam Hussain (AS) and urged their followers to it. In this manner, they kept alive the two important principles of faith, which are to love the friends of Allah (Tawalla) and to disassociate from their enemies (Tabarra).The following is a brief presentation of the importance and benefits of visiting Imam al-Hussain (AS) while recognizing him as an Imam whose obedience is obligatory, as mentioned in the traditions. For the sake of brevity, references are given only from Kamil al-Ziaraat, compiled by Ja’far Ibn Quliwayh al-Qummi (d. 368 AH), which is one of the earliest reliable texts specifically dedicated to this issue. Most of these precious traditions are also found in other reliable collections of the traditions, including the four major books of Hadith:

1 – When Allah intends goodness for someone, He places love of Imam al-Hussain (AS) and love of visiting his grave, in his heart.
(Kamil al-Ziaraat, Chapter 55, Hadith 3)

2 – Visiting Imam al-Hussain (AS) is the sign of love for Ahl al-Bait (AS). Whoever loves Ahl al-Bait (AS) should aspire to visit the grave of Imam al-Hussain (AS). One who does not visit Imam al-Husain (AS), is deficient in faith, and if he ever enters Paradise, his rank will be below the rank of believers in Paradise.
(Kamil al-Ziaraat, Chapter 78, Hadith 4 and Hadith 1)

3 – If a wretched person performs the Ziarat of Imam al-Hussain (AS), felicity shall be written for him, and he shall be continuously immersed in the blessings of Allah.
(Kamil al-Ziaraat, Chapter 57, Hadith 3; Chapter 66, Hadith 10; Chapter 61, Hadith 5)

4 – He who wishes to look towards Allah on the Day of Judgment, be relieved from the agony of death, and pass the stops of the Day of Judgment with ease, should go for visitation of the grave of the Chief of Martyrs, Imam al-Hussain (AS) frequently.
(Kamil al-Ziaraat, Chapter 60, Hadith 1)

5 – The Messenger of Allah (PBUH&HF) will embrace the visitors of Imam al-Hussain (AS) on the Day of Judgment.
(Kamil al-Ziaraat, Chapter 40, Hadith 3)

6 – By performing the Ziarat of the Chief of the Martyrs (AS), one has made/observed a relationship with the Messenger of Allah (PBUH&HF) and the guiding Imams (AS). The requests of the pilgrim at his grave are fulfilled, his supplications are answered, sooner or later, and what the pilgrim had left behind is protected.
(Kamil al-Ziaraat, Chapter 46, Hadith 1)

7 – On the Day of Judgment, the visitors of Imam al-Hussain (AS) will be seated on tables of light. Because of what Allah will grant them in terms of endless dignity and honor, none will be on the Day of Judgment except that he would wish to have been a pilgrim to the grave of Imam al-Hussain (AS). They shall be around heavenly tables with the Prophet (PBUH&HF), Bibi Fatima (SA), and the Imams (AS) while people are held in reckoning.
(Kamil al-Ziaraat, Chapter 50, Hadith 1-3; Chapter 52, Hadith 1-2)

8 – On the Day of Judgment, the Leader of the Faithful (AS) will command the bridge (al-Sirat) over Hell to yield to the visitors of Imam al-Hussain (AS), and will command the fire (surrounding it) to hold back its scorching heat before them until they pass it with an Angel accompanying them.
(Kamil al-Ziaraat, Chapter 44, Hadith 1)

9 – If people know what Allah has placed in the visitation of the grave of Imam al-Hussain (AS) in terms of excellence, they would die out of eagerness, and their breath would stop with a sigh.
(Kamil al-Ziaraat, Chapter 56, Hadith 3)

10 – The Messenger of Allah (PBUH&HF), Bibi Fatima (SA), and the Imams (AS) pray to Allah for forgiveness of the visitors of Imam al-Hussain (AS).
(Kamil al-Ziaraat, Chapter 40, Hadith 1, 3; Chapter 40, Hadith 4)

11 – The Angels pray to Allah for their forgiveness, welcome their arrival, accompany them in their departure, visit them when they are sick, attend their funeral prayers whenever they die, continue to pray for them after their death, and open for them a gate to Paradise in their graves.
(Kamil al-Ziaraat, Chapter 41, Hadith 1, 5; Chapter 27, Hadith 10 & 13)

12 – Allah has appointed 70,000 Angels around the blessed grave of the Chief of the Martyrs (AS), who stay there until the Day of Judgment and perform prayers; each of their prayers is equal to 1000 prayers of human beings. The rewards and merits of these prayers are offered to the visitors of Imam al-Hussain (AS).
(Kamil al-Ziaraat, Chapter 42, Hadith 1-2; Chapter 27, Hadith 14)

13 – The Angels cover the pilgrims with their wings in such a way that they feel the blessings of their presence.
(Kamil al-Ziaraat, Chapter 27, Hadith 16)

14 – For each day that a pilgrim resides in that sacred place, the reward of 1000 months (of worship) is written for him.
(Kamil al-Ziaraat, Chapter 44, Hadith 2)

15 – If the pilgrim is killed by a transgressor on his way to Ziarat of Imam al-Hussain (AS), for the first drop of his blood, all his mistakes shall be forgiven. The Angels shall wash his character, cleansing and purifying it of the impurities merged in it from the characteristics of the people of disbelief, until it becomes pure like the purity of the immaculate prophets (PBUT), and they shall cleanse his heart and broaden his chest. He shall be rewarded with the right to intercede for his family and 1000 of his friends. His grave shall be widened and illuminated. The Angels shall bring gifts for him from Paradise. On the Day of Judgment, the first people to embrace him shall be the Messenger of Allah (PBUH&HF) and his executors (PBUH).
(Kamil al-Ziaraat, Chapter 44, Hadith 2)

16 – If the pilgrim is detained on his way to Ziaraat of Imam al-Hussain (AS), for each day of his captivity and distress, he shall have certain happiness (in this world and after his death) until the Day of Judgment. For any pain that his body receives, one million good deeds are written for him and one million evil deeds are removed from his record. On the Day of Judgment, He shall be able to speak with the Messenger of Allah (PBUH&HF) until he is discharged from reckoning. The carriers of the throne shall embrace him and shall tell him, “Ask for what you wish.” On the other hand, the person that has harmed him shall be taken to Hell without questioning and reckoning, and Allah’s requital and His punishment for him shall be shown to whom he had harmed.
(Kamil al-Ziaraat, Chapter 44, Hadith 2)

17 – A pilgrim who goes to Ziarat of Imam al-Hussain (AS) in a state of fear and insecurity, he or she shall receive security on the day of great terror, (This is one of the names of the Day of Judgment, as mentioned in the holy Quran, Chapter 21, Verse 103), and shall be under the shadow of the throne on that day. He shall return from the Ziarat forgiven and covered with mercy. The Angels shall greet him and the Messenger of Allah (PBUH&HF) shall receive him and shall pray for him.
(Kamil al-Ziaraat, Chapter 45, Hadith 1, 2, 5; Chapter 40, Hadith 3)

18 – If a person comes to Ziaraat of the Chief of the Martyrs (AS) by ship, and the ship sinks and he is drowned, a caller will call from the heaven, giving him glad tidings of Paradise.
(Kamil al-Ziaraat, Chapter 49, Hadith 9-10)

19 – For a single penny that the one gives as charity during the Ziaraat journey, or pays to accommodate the journey of a visitor of Imam al-Hussain (AS), Allah shall grant him 10,000 bounties. As per another Hadith, Allah shall write for him good deeds to the extent of the mount of Uhud, and shall reimburse the money he has spent many fold.
(Kamil al-Ziaraat, Chapter 46, Hadith 2, 4, 5)

20 – For each footstep of one who goes to Ziarat of Imam al-Husain (AS) on foot, Allah, the mighty and the majestic, writes a good deed for him and removes a sin from his record. When he reaches the sanctified place, Allah will write him amongst the prosperous.
(Kamil al-Ziaraat, Chapter 49, Hadith 1)

21 – He who sets out for the Ziarat of Imam al-Hussain (AS) leaves behind his sins on the door of his house like a person who crosses a bridge. He returns to his family while all his burdens and faults have been wiped out from his record. His sustenance increases, and Allah suffices him from what he is concerned about the affairs of his worldly life. No distressed one goes there, except that Allah returns him delighted.
(Kamil al-Ziaraat, Chapter 44, Hadith 2)

22 – Numerous traditions confirm that he who visits the grave of imam al-Hussain (AS) believing that he is an Imam assigned by Allah and that his obedience is obligatory, Allah shall forgive his past and future sins. In one of many traditions that convey this, Imam al-Sadiq (AS) swore by the name of Allah three times when stating this fact.
(Kamil al-Ziaraat, Chapter 54, Hadith 1-15; Chapter 57, Hadith 2)

23 – He who wishes to personally own a palace in Paradise, should visit the grave of Imam al-Hussain (AS). He who dies while he has not visited Imam al-Hussain (AS) (due to negligence) is not a true Shia, and even if he is admitted to Paradise due to his love for the Ahl al-Bait (AS), he will dwell there as a guest of the people of Paradise.
(Kamil al-Ziaraat, Chapter 78, Hadith 3; Chapter 52, Hadith 2)

24 – Visiting the grave of the Chief of the Martyrs (AS) will increase one’s sustenance, prolongs one’s life, and repels the cannons of evil. On the other hand, avoiding it will decrease one’s natural lifetime and (spiritual) sustenance.
(Kamil al-Ziaraat, Chapter 61, Hadith 1-5)

25 – On the Day of Judgment, the visitor of Imam al-Hussain (AS) will be allowed to intercede for 100 people of his choice even if for all of whom Hell had been necessitated, except for a Nasibi because no one can intercede for a Nasibi.
(Kamil al-Ziaraat, Chapter 68, Hadith 2, 4-5)