Musnad Ahmad 945:2

Rawh and Isma'il ibn 'Umar narrated to us, from Malik, from 'Abdullah ibn Abi Bakr, from 'Abbad ibn Tamim, that Abu Bashir al-Ansari informed him: That he was with the Messenger of Allah, may Allah bless him and grant him peace, on one of his journeys. The Messenger of Allah, may Allah bless him and grant him peace, sent a messenger [saying]: "Let there not remain in the neck of a camel a necklace of bowstring, nor a necklace, but that it is cut." Isma'il said: He said: And I think he said: "And the people were at their watering places."