✦.... Ramadhan ki (Raato Mein) Namaz Taraweeh Padne Ki Fazilat ....✦
Narrated Abu Huraira RadiyAllahu Anhu: Allah's Messenger Sallallahu Alaihi Wasallam 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."
[Sahih Bukhari :: Vol. 3 :: Book 32 :: Hadith 227]
Urdu Translation: Abu Hurairah RadiyAllahu Anhu se rivayat hai ke RasoolAllah Sallallhu Alaihi Wasallam ne farmaya Jisne Ramadan ki raato mein (baidar rehkar) Namaze Taraweeh padhi Imaan aur sawab ki Niyyat ke saath, uske pichle tamam gunaah Muaaf ho jayenge.
[Urdu Ref :: Sahih Bukhari :: Vol. 3 :: Hadith 2009]