Sunan Abi Dawud, Book 41, Hadith 4796 (USC-MSA) ⓘ
Narrated Jabir ibn Abdullah: The Prophet said: If someone is donated something, and he mentions it, he thanks for it, and if he conceals it, he is ungrateful for it.
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ الْجَرَّاحِ، حَدَّثَنَا جَرِيرٌ، عَنِ الأَعْمَشِ، عَنْ أَبِي سُفْيَانَ، عَنْ جَابِرٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " مَنْ أَبْلَى بَلاَءً فَذَكَرَهُ فَقَدْ شَكَرَهُ وَإِنْ كَتَمَهُ فَقَدْ كَفَرَهُ " .
also referenced under: Hadith 4814 (DarusSalam) & Hadith 4796 (Hasan)