Nafi' (may Allah have mercy on him) narrates from Sayyiduna Ibn Umar (may Allah be pleased with them both) that whenever he returned from Hajj or Umrah, he would make his mount kneel in the valley of al-Batha', which is near Dhu al-Hulayfah, where the Messenger of Allah (peace and blessings be upon him) used to make his camel kneel.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 10266