That the Messenger of Allah (ﷺ) said: "Ours is not a bad example: The one who takes back his gift is like the dog who takes back his vomit."

On this topic, there is the narration from Ibn 'Umar from the Prophet (ﷺ) that he said: "It is not lawful for anyone that has given a gift to take it back, except for a father who gives something to his son."
Jami` at-Tirmidhi Book 14, Hadith 100
← Previous Hadith That during the Year of the Conquest, while he was in Makkah, he heard the Messenger of Allah (ﷺ) saying: "Indeed Allah and His Messenger unlawful the sale of wine, dead carcasses, the pig, and idols." They said: "O Messenger of Allah! What about the fat of carcasses? For indeed it is used to coat the ships, skins are oiled with it, and people use it for lamps?" He said: "No. It is unlawful." Then, with that, the Messenger of Allah (ﷺ) said: "May Allah fight (curse) the Jews! Indeed Allah made the fat unlawful for them, they melted it, sold it, and consumed its price."

There are narrations of this topic from 'Umar and Ibn 'Abbas.

The Hadith of Jabir is Hasan Sahih Hadith. This is acted upon according to the people of knowledge.

Jami` at-Tirmidhi Book 14, Hadith 99 Next Hadith → That he heard Tawus narrating from Ibn 'Umar and Ibn 'Abbas, and they both narrated this Hadith from the Prophet (ﷺ). (A Hadith similar to no. 1298).

The Hadith of Ibn 'Abbas (ra), is a Hasan Sahih Hadith. This Hadith is acted upon according to soe of the people of knowledge among the Companions of the Prophet (ﷺ). They said whoever gives a gift to a closely related relative, then he is not to take back his gift. And whoever gives a gift to someone other then a close relative, then he may take it back as long as it has not been reciprocated. This is the view of Ath-Thawri. Ash-Shafi'i said: "It is not lawful for any that has given a gift to take it back except for what the father gave to his son." Ash-Shafi'i argued with the Hadith of 'Abdullah bin 'Umar from the Prophet (ﷺ): "It is not lawful for anyone that has given a gift to take it back, except for a father who give something to his son."

Jami` at-Tirmidhi Book 14, Hadith 101