Ruling on selling Al-Musarrah (An animal in whose udder milk has been allowed to accumulate) Sahih Muslim 1524 c
Translation
Abu Huraira (Allah be pleased with him) reported Allah's Apostle (ﷺ) as saying
lie who buys a goat having its udder tied up has the option to return it within three days. If he returns it he should pay a sa' of dates. Wheat is not essential.