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