Language:
كتاب الحدود
86  
Limits and Punishments set by Allah (Hudood)
(21)
Chapter: The Rajm of a married person
(21)
باب رَجْمِ الْمُحْصَنِ
Sahih al-Bukhari 6812

Narrated Ash-Shu`bi:

from `Ali when the latter stoned a lady to death on a Friday. `Ali said, "I have stoned her according to the tradition of Allah's Messenger (ﷺ)."

حَدَّثَنَا آدَمُ، حَدَّثَنَا شُعْبَةُ، حَدَّثَنَا سَلَمَةُ بْنُ كُهَيْلٍ، قَالَ سَمِعْتُ الشَّعْبِيَّ، يُحَدِّثُ عَنْ عَلِيٍّ، رضى الله عنه حِينَ رَجَمَ الْمَرْأَةَ يَوْمَ الْجُمُعَةِ وَقَالَ قَدْ رَجَمْتُهَا بِسُنَّةِ رَسُولِ اللَّهِ صلى الله عليه وسلم‏.‏
Reference : Sahih al-Bukhari 6812
In-book reference : Book 86, Hadith 41
USC-MSA web (English) reference : Vol. 8, Book 82, Hadith 803
  (deprecated numbering scheme)