#7 Voluntary prayer
The Book of belief (i.e. Faith)
(25) Chapter : To establish the (Nawafil – voluntary) prayers on the night of Qadr is a part of faith.
Hadith 35.
Narrated Abu Hurairah رَضِيَ ٱللَّٰهُ عَنْهُ: Allah’s Messenger said صَلَّى ٱللَّٰهُ عَلَيْهِ وَ سَلَّم , “Whoever establishes the (Nawafil – voluntary) prayers on the night of Qadr out of sincere faith and hoping to attain Allah’s rewards (not to show off) then all his past sins will be forgiven.”