The Adhan pronounced by a blind man (is permissible) when there is a person to inform him about the time of the Salat (prayer)
باب أَذَانِ الأَعْمَى إِذَا كَانَ لَهُ مَنْ يُخْبِرُهُ
1111
Sahih Bukhari
Sahih
حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ عَبْدِ اللَّهِ، قَالَ حَدَّثَنِي مُحَمَّدُ بْنُ جَعْفَرٍ، عَنْ حُمَيْدٍ، أَنَّهُ سَمِعَ أَنَسًا ـ رضى الله عنه ـ يَقُولُ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُفْطِرُ مِنَ الشَّهْرِ حَتَّى نَظُنَّ أَنْ لاَ يَصُومَ مِنْهُ، وَيَصُومُ حَتَّى نَظُنَّ أَنْ لاَ يُفْطِرَ مِنْهُ شَيْئًا، وَكَانَ لاَ تَشَاءُ أَنْ تَرَاهُ مِنَ اللَّيْلِ مُصَلِّيًا إِلاَّ رَأَيْتَهُ وَلاَ نَائِمًا إِلاَّ رَأَيْتَهُ. تَابَعَهُ سُلَيْمَانُ وَأَبُو خَالِدٍ الأَحْمَرُ عَنْ حُمَيْدٍ.
Narrated Anas bin Malik:
Sometimes Allah's Messenger (ﷺ) would not fast (for so many days) that we thought that he would not fast that month and he sometimes used to fast (for so many days) that we thought he would not leave fasting throughout that month and (as regards his prayer and sleep at night), if you wanted to see him praying at night, you could see him praying and if you wanted to see him sleeping, you could see him sleeping.
Reference: Sahih al-Bukhari 1141 In-book : Book 19, Hadith 22 USC-MSA web (English) : Vol. 2, Book 21, Hadith 242 (deprecated)
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