It wasnarrated that Ibn 'Abbas said:
"Camels became scarce at thetimeof the Messenger of Allah (ﷺ), so he commanded them tosacrificecows." (RU)
English reference (RU): Vol. 4, Book 26, Hadith 3134 (RU)
Arabic reference (RU): Book 26, Hadith 3254 (RU)