ALLAH’S MESSENGER (صلى الله عليه و سلم) SAID:

WHOEVER ESTABLISHES(NAWAFIL-VOLUNTARY) PRAYERS DURING THE NIGHT OF RAMADHAN FAITHFULLY OUT OF SINCERE FAITH AND HOPING TO ATTAIN ALLAH’S REWARDS,ALL HIS PAST SINS WILL BE FORGIVEN.

NARRATED ABU HURAIRA(RA)

عن ابي هريرة (رضي الله عنه) ان رسول الله (صلى الله عليه و سلم) قال :من قام رمضان ,امانا و احتسابا,غفر له ما تقدم من ذنبه