Narrated `Abdullah bin `Umar: The Prophet (ﷺ) 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)"
Book 95 · Hadith 3
صحيح البخاري
Narrated `Abdullah bin `Umar: The Prophet (ﷺ) 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)"