Sunan an-Nasa'i #5024 · The Book Of Faith and its Signs

Sunan an-Nasa'iIt was narrated from Abu Hurairah that
Sunan an-Nasa'i · Book 47 · The Book Of Faith and its Signs
Sunan an-Nasa'i · كتاب 47 · كتاب الإيمان وعلاماته
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
أَخْبَرَنَا قُتَيْبَةُ قَالَ حَدَّثَنَا سُفْيَانُ عَنْ الزُّهْرِيِّ عَنْ أَبِي سَلَمَةَ عَنْ أَبِي هُرَيْرَةَ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ مَنْ قَامَ شَهْرَ رَمَضَانَ إِيمَانًا وَاحْتِسَابًا غُفِرَ لَهُ مَا تَقَدَّمَ مِنْ ذَنْبِهِ
Reference : Sunan an-Nasa'i 5024In-book reference : Book 47, Hadith 40