Sunan an-Nasa'i, Volume 4, Book 32, Hadith 3728 (DarusSalam) ⓘ
It was narrated that Ibn 'Abbas said: "The Messenger of Allah said: 'It does not befit us to leave bad examples. The one who takes back his gift is like the one who goes back to his vomit.'"
أَخْبَرَنَا مُحَمَّدُ بْنُ الْعَلاَءِ، قَالَ حَدَّثَنَا أَبُو خَالِدٍ، - وَهُوَ سُلَيْمَانُ بْنُ حَيَّانَ - عَنْ سَعِيدِ بْنِ أَبِي عَرُوبَةَ، عَنْ أَيُّوبَ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لَيْسَ لَنَا مَثَلُ السَّوْءِ الْعَائِدُ فِي هِبَتِهِ كَالْعَائِدِ فِي قَيْئِهِ " .
also referenced under: Hadith 3698 (Reference) & Book 32, Hadith 11 (In-Book)