Sahih al-Bukhari
Book 10: Call to Prayers (Adhaan)
كتاب الأذان
266 hadith in this book
Chapter 27 If the Imam is confronted with a problem after the Iqama
باب الإِمَامِ تَعْرِضُ لَهُ الْحَاجَةُ بَعْدَ الإِقَامَةِ
Narrated Anas:
Once the Iqama was pronounced and the Prophet (ﷺ) was talking to a man (in a low voice) in a corner of the mosque and he did not lead the prayer till (some of) the people had slept (dozed in a sitting posture) .
حَدَّثَنَا أَبُو مَعْمَرٍ عَبْدُ اللَّهِ بْنُ عَمْرٍو، قَالَ حَدَّثَنَا عَبْدُ الْوَارِثِ، قَالَ حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ صُهَيْبٍ، عَنْ أَنَسٍ، قَالَ أُقِيمَتِ الصَّلاَةُ وَالنَّبِيُّ صلى الله عليه وسلم يُنَاجِي رَجُلاً فِي جَانِبِ الْمَسْجِدِ، فَمَا قَامَ إِلَى الصَّلاَةِ حَتَّى نَامَ الْقَوْمُ.
Hadith text, translations and grading are courtesy of Sunnah.com.