Jami At Tirmidhi
3731
Sahih+3

Narrated Sa'd bin Abi Waqqas: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]

SahihAhmad Muhammad Shakir
SahihAl-Albani