The Rites of Hajj (Kitab Al-Manasik Wa'l-Hajj)
Dawud :: Book 10 : Hadith 1939
Narrated Jabir ibn Abdullah:
The Apostle of Allah (peace_be_upon_him) hastened from al-Muzdalifah with a quite demeanour and ordered them (the people) to throw small pebbles and he hastened in the valley (wadi) of Muhassir.