Sunan Abi Dawud 4811
سنن أبي داود#4811SahihNarrated Abu Hurayrah: The Prophet (ﷺ) said: He who does not thank the people is not thankful to 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
Shuaib Al ArnautSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 43:39