It wasnarrated that 'Aishah said:
"We used to store trotters and theMessenger of Allah (ﷺ) would eat them fifteen days after thesacrifice." (RU)
English reference (RU): Vol. 4, Book 29, Hadith 3313 (RU)
Arabic reference (RU): Book 29, Hadith 3438 (RU)