Sahih al-Bukhari 5631
صحيح البخاري#5631Sahihحَدَّثَنَا أَبُو عَاصِمٍ، وَأَبُو نُعَيْمٍ قَالاَ حَدَّثَنَا عَزْرَةُ بْنُ ثَابِتٍ، قَالَ أَخْبَرَنِي ثُمَامَةُ بْنُ عَبْدِ اللَّهِ، قَالَ كَانَ أَنَسٌ يَتَنَفَّسُ فِي الإِنَاءِ مَرَّتَيْنِ أَوْ ثَلاَثًا، وَزَعَمَ أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ يَتَنَفَّسُ ثَلاَثًا.
Narrated Thumama bin `Abdullah:Anas used to breathe twice or thrice in the vessel (while drinking) and used to say that the Prophet; used to take three breaths while drinking
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 74:57