أَخْبَرَنَا قُتَيْبَةُ، عَنْ مَالِكٍ، عَنْ عَبْدِ اللَّهِ بْنِ دِينَارٍ، عَنِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " إِنَّ بِلاَلاً يُؤَذِّنُ بِلَيْلٍ فَكُلُوا وَاشْرَبُوا حَتَّى يُنَادِيَ ابْنُ أُمِّ مَكْتُومٍ " .
It was narrated from Ibn 'Umar that the Messenger of Allah (PBUH) said: "Bilal calls the Adhan during the night, so eat and drink until Ibn Umm Maktum calls (the Adhan)" Translation Not Available
Book Ref: Sunan An Nisai Book 7 Hadith 644
Web Ref: Sunan An Nisai Vol 1 Book 7 Hadith 638