وَعَن ابنِ عمَرَ
أَنَّهُ أَتَى عَلَى رَجُلٍ قَدْ أَنَاخَ بِدَنَتَهُ يَنْحَرُهَا قَالَ: ابْعَثْهَا قِيَامًا مُقَيَّدَةً سُنَّةَ مُحَمَّدٍ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ
Ibn Umar came upon a man who had made his camel kneel and was sacrificing it, so he told him to make it stand up fettered according to the sunna of Muhammad. Bukhari and Muslim.
Mishkat al-Masabih 2527, Book 11, The Rites of Pilgrimage, Hadith 129. 1 min read