Sahih al-Bukhari 617
Sahih al-Bukhari · Book 10: Call to Prayers (Adhaan) · The Adhan pronounced by a blind man (is permissible) when there is a person to inform him about the time of the Salat (prayer)
Narrated Salim bin `Abdullah:
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ ، عَنْ مَالِكٍ ، عَنِ ابْنِ شِهَابٍ ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ ، عَنْ أَبِيهِ ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " إِنَّ بِلاَلاً يُؤَذِّنُ بِلَيْلٍ، فَكُلُوا وَاشْرَبُوا حَتَّى يُنَادِيَ ابْنُ أُمِّ مَكْتُومٍ ". ثُمَّ قَالَ وَكَانَ رَجُلاً أَعْمَى لاَ يُنَادِي حَتَّى يُقَالَ لَهُ أَصْبَحْتَ أَصْبَحْتَ.
My father said that Allah s Apostle said, "Bilal pronounces 'Adhan at night, so keep on eating and drinking (Suhur) till Ibn Um Maktum pronounces Adhan." Salim added, "He was a blind man who would not pronounce the Adhan unless he was told that the day had dawned."