Sahih al-Bukhari 788
صحيح البخاري#788Sahihحَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، قَالَ أَخْبَرَنَا هَمَّامٌ، عَنْ قَتَادَةَ، عَنْ عِكْرِمَةَ، قَالَ صَلَّيْتُ خَلْفَ شَيْخٍ بِمَكَّةَ فَكَبَّرَ ثِنْتَيْنِ وَعِشْرِينَ تَكْبِيرَةً، فَقُلْتُ لاِبْنِ عَبَّاسٍ إِنَّهُ أَحْمَقُ. فَقَالَ ثَكِلَتْكَ أُمُّكَ، سُنَّةُ أَبِي الْقَاسِمِ صلى الله عليه وسلم. وَقَالَ مُوسَى حَدَّثَنَا أَبَانُ حَدَّثَنَا قَتَادَةُ حَدَّثَنَا عِكْرِمَةُ.
Narrated `Ikrima:I prayed behind a Sheikh at Mecca and he said twenty two Takbirs (during the prayer). I told Ibn `Abbas that he (i.e. that Sheikh) was foolish. Ibn `Abbas admonished me and said, "This is the tradition of Abul-Qasim
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: 10:183