Sunan An Nasai 3735

أَخْبَرَنَا مُحَمَّدُ بْنُ حَاتِمِ بْنِ نُعَيْمٍ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ حَدَّثَنَا حِبَّانُ، ‏‏‏‏‏‏أَنْبَأَنَا عَبْدُ اللَّهِ، ‏‏‏‏‏‏عَنْ حَنْظَلَةَ،‏‏‏‏ أَنَّهُ سَمِعَ طَاوُسًا،‏‏‏‏ يَقُولُ:‏‏‏‏ أَخْبَرَنَا بَعْضُ مَنْ أَدْرَكَ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَنَّهُ قَالَ:‏‏‏‏ مَثَلُ الَّذِي يَهَبُ فَيَرْجِعُ فِي هِبَتِهِ كَمَثَلِ الْكَلْبِ يَأْكُلُ فَيَقِيءُ، ‏‏‏‏‏‏ثُمَّ يَأْكُلُ قَيْئَهُ .

It was narrated from Hanzalah that he heard Tawus say: Some of those who met the Prophet told us that he said: 'The likeness of the one who gives (something), then takes back his gift, is that of a dog which eats, then vomits, then eats its vomit.'