The 15th of Shabaan is also known as Neema-e-Shabaan and it is also remembered as Shab-e-Barat among Muslims. It is a highly virtuous night during which our last Imam Mohammad Mehdi was born.
Imam Ali relates from the Prophet Mohammad that the 15th of Shabaan is a highly virtuous night and the believers should spend this night offering prayers and should observe fast on the following day. Verily during this night until dawn Allah(swt) inquires Malaik (angels) – is there anyone who repents his sins and I forgive him/her? Is there anyone who asks for increase in earnings (Rizk/Rozi) and I grant so.
Ahadith in the book Iqbalul A‘mal “Therefore, stay awake this night in prayer and worship and encourage your Ummah to also keep awake this night in order to get closer to Allah (Glorified and Exalted is He) through their actions since this is a noble night. I have come to you while all the Angels in the Heavens are together with one another some are glorifying Allah, others are in Ruku‘, others are in the state of Sujud while others are busy in the Dhikr of Allah. This is a night in which not a single person supplicates to Allah except that his prayers are accepted. Nobody asks for a single thing on this night except that it will be given to him. No one asks Allah for forgiveness except that his sins are wiped out. No one turns in repentance to Allah except that He accepts their repentance. Whoever is deprived of the goodness of this night has definitely been deprived of something great.”
Almighty Allah has chosen this night for the Ahl al-Bayt, in the same way as He has chosen the Qadr Night for our Prophet—peace be upon him and his Family.