question #1 Sahih al-Bukhari 1149, Book 19, Hadith 30 : What significance does performing additional prayers after ablution hold in Islam?

At the time of the Fajr prayer the Prophet (ﷺ) 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.”