Sahih Muslim
The Book of Pilgrimage (Kitab Al-Hajj)
Book Number: 007 / Hadith Number: 3121
Nafi' reported that 'Abdullah b. Umar (Allah be pleased with them) used to halt his camel in the stony ground at Dhu'l-Hulaifa, where Allah's Messenger (may peace be upon him) used to make a halt (and pray).