بُلُوغُ الْمَرَامِ
Bulugh al-Maram 190
The Book of Prayer
وَعَنْ اِبْنِ عُمَرَ, وَعَائِشَةَ قَالَا: قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ إِنَّ بِلَالاً يُؤَذِّنُ بِلَيْلٍ, فَكُلُوا وَاشْرَبُوا حَتَّى يُنَادِيَ اِبْنُ أُمِّ مَكْتُومٍ", وَكَانَ رَجُلاً أَعْمَى لَا يُنَادِي, حَتَّى يُقَالَ لَهُ: أَصْبَحْتَ, أَصْبَحْتَ } مُتَّفَقٌ عَلَيْهِ [1] . وَفِي آخِرِهِ إِدْرَاجٌ [2] .
Narrated Ibn 'Umar and 'Aishah (RA): Allah's Messenger (ﷺ) said: "Bilal calls for prayer when it is still night, so eat and drink till Ibn Umm Maktum calls for prayer." And he (Ibn Umm Maktum) was a blind man who did not call for a prayer until he was told: "It is morning time, it is morning time." [Agreed upon]. There is an Idraj in its last part.
Sunnah.com reference: Book 2, Hadith 51