The Messenger of Allah ﷺ said, "Whoever does not thank people has not thanked Allah."
حدثنا يزيد أخبرنا الربيع بن مسلم عن محمد بن زياد
قال رسول الله ﷺ لا يشكر الله من لا يشكر الناس
No references are available.
Its isnad is sahih. It is a repetition of 7495, and we noted this there.