The Prophet ﷺ said: He who does not thank the people is not thankful to Allah.  

عَنِ النَّبِيِّ ﷺ قَالَ لاَ يَشْكُرُ اللَّهَ مَنْ لاَ يَشْكُرُ النَّاسَ  

The Immigrants (Muhajirun) said: Messenger of Allah! the Helpers (Ansar) got the entire reward. He said: no, so long as you pray to Allah for them and praise them.  

أَنَّ الْمُهَاجِرِينَ قَالُوا يَا رَسُولَ اللَّهِ ذَهَبَتِ الأَنْصَارُ بِالأَجْرِ كُلِّهِ قَالَ لاَ مَا دَعَوْتُمُ اللَّهَ لَهُمْ وَأَثْنَيْتُمْ عَلَيْهِمْ  

The Prophet ﷺ said: If someone is given something, he should give a return for it provided he can afford; if he cannot afford, he should praise him. He who praises him for it, thanks him, and he who conceals it is ungrateful to him. Abu Dawud said: It has been transmitted by Yahya b. Ayyub, from ʿUmarah b. Ghaziyyah, from Sharahbil on the authority of Jabir. Abu Dawud said: In the chain of this tradition ʿUmarah b. Ghaziyyah said: A man from my tribe said. The man referred by him is Sharahbil. It is likely that they disliked him and, therefore, they did not name him.  

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ أُعْطِيَ عَطَاءً فَوَجَدَ فَلْيَجْزِ بِهِ فَإِنْ لَمْ يَجِدْ فَلْيُثْنِ بِهِ فَمَنْ أَثْنَى بِهِ فَقَدْ شَكَرَهُ وَمَنْ كَتَمَهُ فَقَدْ كَفَرَهُ  

The Prophet ﷺ said: If someone is donated something, and he mentions it, he thanks for it, and if he conceals it, he is ungrateful for it.  

عَنِ النَّبِيِّ ﷺ قَالَ مَنْ أَبْلَى بَلاَءً فَذَكَرَهُ فَقَدْ شَكَرَهُ وَإِنْ كَتَمَهُ فَقَدْ كَفَرَهُ