I saw Ibn Umar come upon a man who had made his sacrificial camel kneel down so he could slaughter it at Mina. He said, "Make it stand up with its leg tied. That is the sunnah of Muhammad ﷺ."
حدثنا إسماعيل أخبرنا يونس
رأيت ابن عمر أتى على رجل قد أناخ بدنته لينحرها بمنى فقال ابعثها قياما مقيدة سنة محمد ﷺ
Its isnad is sahih. In H, "from Ibn Ziyad bin Jubayr," but the addition of "Ibn" is a clear error, and for that reason it was not mentioned in K or M."A man came to him" - in a copy in the margin of M, it reads "qad ati" (he had already come), with the addition of "qad." This hadith is a repetition of 5580.