(11) باب أَذَانِ الأَعْمَى إِذَا كَانَ لَهُ مَنْ يُخْبِرُهُ
Narrated Salim bin `Abdullah:
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."
Reference: Sahih al-Bukhari 617
In-book reference: Book 10, Hadith 15
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 11, Hadith 591