Abu Hurayrah (may Allah be pleased with him) narrated
that the Prophet (peace and blessings be upon him) said:
"Whoever stands (in Qiyam) in Laylatul-Qadr
(and it is facilitated for him)
out of faith and expectation of Allah's reward,
will have all of his previous sins forgiven."
(Reported by Al-Bukhari and Muslim).
