Mishkat al-Masabih 20 Game and Animals Which May Be Slaughtered كتاب الصيد والذبائح 5

وَعَنْهُ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ فِي الَّذِي يُدْرِكُ صَيْدَهُ بَعْدَ ثَلَاثٍ: «فكله مَا لم ينتن» . رَوَاهُ مُسلم

He reported the Prophet as saying about one who comes three days later on the game he has shot, “Eat it, provided it has not a stench.” Muslim transmitted it.