Sahih Muslim
The Book of Pilgrimage (Kitab Al-Hajj)
Book Number: 007 / Hadith Number: 3120
Abdullah b. 'Umar (Allah be pleased with them) reported that Allah's Messenger (may peace be upon him) made (his camel) kneel down (i, e. halt at the stony ground of Dhu'l-Hulaifa) and prayed there, and so did Abdullah b. Umar (Allah be pleased with them).