Hawzah News Agency – The merciful prophet of Islam, peace be upon him and his household says:

العائدُ فِي هِبَتِهِ كالعائدِ في قَيئهِ.

'One who takes back a gift he has given is like one who swallows his own vomit.'

Source: Bihar al-Anwar, v. 103, p. 189, no. 5