(21) قِيَامُ رَمَضَانَ
It was narrated from Abu Hurairah that :
The Messenger of Allah [SAW] said: "Whoever stands (in he voluntary night prayer of) the Ramadan out of faith and in the hope of reward, his previous sins will be forgiven."
Reference: Sunan an-Nasa'i 5024
In-book reference: Book 47, Hadith 40
English translation: Vol. 6, Book 47, Hadith 5027