Jami` at-Tirmidhi 2700
جامع الترمذي#2700SahihNarrated Abu Hurairah:that the Messenger of Allah (ﷺ) said: "Do not precede the Jews and the Christians with the Salam. And if one of you meets them in the path, then force them to its narrow portion
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 Muslim
In-book reference: 42:13