Sunan Ibn Majah
2182
Sahih Hadith+3

It was narrated from Abu Barzah Al-Aslami that the Messenger of Allah (ﷺ) said:”The two parties to a transaction have the choice (of annulling it) so long as they have not yet parted

Sahih HadithAl-Albani
SahihMuhammad Fouad Abd al-Baqi