Sahih al-Bukhari 2009
Narrated Abu Huraira: Allah’s Messenger (ﷺ) said, “Whoever prayed at night the whole month of Ramadan out of sincere Faith and hoping for a reward from Allah, then all his previous sins will be forgiven.” Ibn Shihab (a sub-narrator) said, “Allah’s Messenger (ﷺ) died and the people continued observing that (i.e. Nawafil offered individually, not in congregation), and it remained as it was during the Caliphate of Abu Bakr and in the early days of ‘Umar’s Caliphate.”

• This hadith from Sahih al-Bukhari narrates that the Prophet Muhammad (peace be upon him) said that whoever performs the night prayers (tahajjud) throughout the month of Ramadan with sincere faith and hope for Allah’s reward, their previous sins will be forgiven. The sub-narrator mentions that after the Prophet’s death, the practice of offering these prayers individually continued among the people. It was also practiced during the caliphate of Abu Bakr and in the early days of Umar’s caliphate. This hadith highlights the importance and rewards of performing night prayers during Ramadan. It also indicates that the practice was continued by the Prophet’s companions even after his death.