It wasnarrated that Abu Sa'eed Al-Khudri said:
"We bought a ram forsacrifice, then a wolf tore some flesh from its rump and ears. Weasked the Prophet (ﷺ) and he told us to offer it as a sacrifice." (TR)
English reference (TR): Vol. 4, Book 26, Hadith 3146 (TR)
Arabic reference (TR): Book 26, Hadith 3266 (TR)