سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 637
The Book of the Adhan (The Call to Prayer)
Two Mu'adhdhins In One Masjid
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 (ﷺ) said: "Bilal calls the Adhan during the night, so eat and drink until Ibn Umm Maktum calls (the Adhan)"
Sunan an-Nasa'i, 637Sahih (Darussalam)