Sunan Abi Dawud 4805
سنن أبي داود#4805SahihAbu Bakrah said that when a man praised another man in his face in the presence of the Prophet (ﷺ) said :You have beheaded your friend (saying it three times). He then said : One who cannot help expressing praise of his companion, should say : I consider him such and such (as he intends to say), but I do not declare him pure with Allah
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiSahih Bukhari (6061) Sahih Muslim (3000)
In-book reference: 43:33