Jami` at-Tirmidhi 1431
جامع الترمذي#1431SahihUmar bin Al-Khattab said:"The Messenger of Allah (ﷺ) stoned, Abu Bakr stoned, and I stoned. If I didn't dislike that I add to the Book of Allah. I would have written it in the Mushaf, for I fear that there will come a people and they will not find it in the Book of Allah, so they will disbelieve in it
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih
In-book reference: 17:11