From Sahih Muslim (Hadith 3835):
Hammam b. Munabbih said:Out of the ahadith which Abu Huraira (Allah be pleased with him) reported to us from Allah's Messenger (ﷺ) one is this that Allah's Messenger (ﷺ) said: If one among you buys a she-camel having its udder tied up he has the two options for him after milking it either (to retain it) or return it with a sa' of dates
Reference: Muslim 3835