We must all know that the special zyarat of mid Sha'ban to Imam Al-Hussayn (peace be upon him) has great virtue, as has said our holy Imams (peace be upon them), especially that it is related to the auspicious birth of The proof of Allah on earth our awaited Imam Al-Mahdi (may Allah hasten his reappearance).
There are many narrations of our Imams (peace be upon them) stressing on the visit of Imam Al-Hussayn (peace be upon him) during this blessed day, hence all believers should spread this culture among true Muslim community, and explain the great virtue of the visit (zyarat) of Imam Al-Hussayn (peace be upon him) especially on the night where was born the Imam of Advent, the greater proof (May Allah hasten holy his reappearance). So through the narrations, the most important act of worship during this blessed day, is the zyarat of Imam Al-Hussayn (peace be upon him) that Ahl Al-Bayt (peace be upon them) have recommended:
1- It is narrated from Ibn Abi Nasr that he asked Imam Ar-Reza (peace be upon him) what was the best time for the Zyarat of Imam Al-Husayn (peace be upon him). He (peace be upon him) replied: 15th Rajab and 15th Sha'ban.
2- It is reported from Abi Hamza athamali that he heard Imam Ali Zayn ul Abedeen (peace be upon him) saying: "He who wants 124.000 prophets to shake his hand, should perform the zyarat of Imam Al-Hussayn (peace be upon him) in the night of mid Sha'ban, because angels and souls of the prophets are asking permission from Allah the Almighty to visit him and He authorize them, Tuba (everlasting bliss) is for those who shake hands with them, among them the five Ulu Al'azm (the stout of heart) among the messengers: Noah, Ibrahim, Moses, Jesus and Mohammed (Peace and Allah's blessing be upon him, his holy family and all messengers), I asked: why they were called "Ulu Al-'azm"? He (peace be upon him) replied: because they were sent to the east, west, Jinns and humans of earth."
3- It is narrated from Aaron Ibn Kharejah that Imam As-Sadeq (peace be upon him) has said: when it is the mid of Sha'ban, a caller from the higher horizon says to the visitors of Al-Hussayn: you may go back forgiven, your reward is on Allah your God and on Mohammed"
4- And Imam As-Sadeq (peace be upon him) has said: " The sins of the visitor of Al-Hussayn son of Ali in the mid Sha'ban are forgiven, and no sin of his is written for the whole year, and if he visits him again next year, Allah will forgive all his sins".
Imam As-Sadiq (peace be upon him) has also said : "He who visits Aba Abdillah Al-Hussayn (peace be upon him) for three consecutive years without separation in the mid of Sha'ban, his sins will be forgiven."