Narrated `Abdullah bin `Umar: The Prophet said, "Bilal pronounces the Adhan at night so that you may eat and drink till Ibn Um Maktum pronounces the Adhan (for the Fajr prayer).
Hadith ReferenceSahih Bukhari / The Book About The Information Given by One Person / Hadith: 7248
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة