Sunan Abi Dawud 4811
سنن أبي داود#4811Sahihحَدَّثَنَا مُسْلِمُ بْنُ إِبْرَاهِيمَ، حَدَّثَنَا الرَّبِيعُ بْنُ مُسْلِمٍ، عَنْ مُحَمَّدِ بْنِ زِيَادٍ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " لاَ يَشْكُرُ اللَّهَ مَنْ لاَ يَشْكُرُ النَّاسَ " .
Narrated Abu Hurayrah: The Prophet (ﷺ) said: He who does not thank the people is not thankful to Allah
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 43:39