Musnad Abu Ya'la al-Mawsili 108:85

Zuhayr narrated to us, Hushaym narrated to us, Layth informed us, from ‘Ata’, from Jabir ibn ‘Abd Allah, that the Messenger of Allah (may Allah bless him and grant him peace) said, when he departed from ‘Arafat: "O people, upon you is tranquility and dignity, and let not some of you kill others."