Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) said that the Messenger of Allah (peace and blessings be upon him) made his camel kneel in the valley of al-Batha', which is near Dhu al-Hulayfah, and prayed there. Nafi' (may Allah have mercy on him) said that Sayyiduna Ibn Umar (may Allah be pleased with them both) also used to do the same.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 10265