كتاب الأدب
Read the English translation first, with the original Arabic directly underneath.
Narrated Jabir ibn Abdullah:
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 `Umarah b. Ghaziyyah, from Sharahbil on the authority of Jabir. Abu Dawud said: In the chain of this tradition `Umarah 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.
مَنْ أُعْطِيَ عَطَاءً فَوَجَدَ فَلْيَجْزِ بِهِ فَإِنْ لَمْ يَجِدْ فَلْيُثْنِ بِهِ فَمَنْ أَثْنَى بِهِ فَقَدْ شَكَرَهُ وَمَنْ كَتَمَهُ فَقَدْ كَفَرَهُ