Abdullah bin 'Amr bin al-'Aas · Chapters on Sacrifices

“I was present on Adha day with the Messenger of Allah (ﷺ), and some people slaughtered before the prayer. The Prophet (ﷺ) said: ‘Whoever among you has slaughtered before the prayer, let him repeat his sacrifice, and whoever has not, let him offer his sacrifice in the Name of Allah.’”

“I saw the Messenger of Allah (ﷺ) slaughter his sacrifice with his own hand, placing his foot on its side.”