Muwatta Malik, Book 3, Hadith 15 (USC-MSA) ⓘ
Yahya related to me from Malik from Abdullah ibn Dinar from Abdullah ibn Umar that the Messenger of Allah, may Allah bless him and grant him peace, said, "Bilal calls the adhan whilst it is still night so eat and drink until Ibn Umm Maktum calls the adhan."
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ عَبْدِ اللَّهِ بْنِ دِينَارٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " إِنَّ بِلاَلاً يُنَادِي بِلَيْلٍ فَكُلُوا وَاشْرَبُوا حَتَّى يُنَادِيَ ابْنُ أُمِّ مَكْتُومٍ " .
also referenced under: Book 3, Hadith 161 (In-Book)