Ziyad bin Jubair says that (I was with Sayyiduna Ibn Umar, may Allah be pleased with them both, in the plain of Mina), on the way he passed by a man who had made his she-camel kneel down and wanted to slaughter it. Sayyiduna Ibn Umar, may Allah be pleased with them both, said to him: "Make it stand, tie its legs, and then slaughter it. This is the Sunnah of the Prophet (peace be upon him)."