Jami` at-Tirmidhi 3730
جامع الترمذي#3730SahihNarrated Jabir bin 'Abdullah:that the Prophet (ﷺ) said to 'Ali: "You are to me in the position that Harun was to Musa, except that there is no Prophet after me
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih Lighairihi
Al-AlbaniSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 49:127