Bismillah Walhamdulillah Was Salaatu Was Salaam ‘ala Rasulillah

Narrated Abu Huraira (Radi-Allahu ‘anhu):

At the time of the Fajr prayer the Prophet (Sallallahu ‘Alaihi Wa Sallam) asked Bilal, “Tell me of the best deed you did after embracing Islam, for I heard your footsteps in front of me in Paradise.” Bilal replied, “I did not do anything worth mentioning except that whenever I performed ablution during the day or night, I prayed after that ablution as much as was written for me.”

Bukhari Vol. 2 : No. 250