What was the best deed that Bilal (ra) did after embracing Islam that made the Prophet Muhammad (saw) hear his footsteps in Paradise?
 Narrated Abu Huraira:                     At the time of the Fajr prayer the Prophet 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."