Sunan Ibn Majah 3743
سنن ابن ماجه#3743HasanIt was narrated that Muawiyah said:"I heard the Messenger of Allah(ﷺ) say: 'Beware of praising one another, for it is slaughtering (one another)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniHasan
Muhammad Fouad Abd al-BaqiHasan
Zubair Ali ZaiIsnaad Hasan
In-book reference: 33:87