Jami At Tirmidhi
1341
Sahih+2

Amr bin Shu'aib narrated from his father, from his grandfather, that during a Khutbah, the Prophet (ﷺ) said:"The proof is due from the claimant, and the oath is due from the one the claim is made against

SahihAhmad Muhammad Shakir
SahihAl-Albani