Abu Hurairah reported: The Prophet, peace be upon him, said, “He has not thanked Allah who has not thanked people.”
[Sunan Abu Dawud, Book 40, Number 4811]
عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ لاَ يَشْكُرُ اللَّهَ مَنْ لاَ يَشْكُرُ النَّاسَ