عَنْ سَالِمٍ عَنْ أَبِيهِ (عَبْدِ اللَّهِ بْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُ) عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ: ((إِنَّ بِلَالًا يُؤَذِّنُ بِلَيْلِ فَكُلُوا وَاشْرَبُوا حَتَّى يُؤَذِّنَ ابْنُ أُمِّ مَكْتُومٍ))
It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Indeed, Bilal gives the call to prayer at night, so continue eating and drinking until Ibn Umm Maktum gives the call to prayer.