Ibn Umar came upon a man who was slaughtering his sacrificial camel while it was kneeling. He said, "Make it stand up with one leg tied, the way your Prophet ﷺ used to do it."
أن ابن عمر أتى على رجل وهو ينحر بدنته باركة، فقال: ابعثها قياما مقيدة، سنة نبيكم ﷺ.