Musnad Ahmad 1159:13

Ya'qub narrated to us, he said: I heard him narrating—meaning his father—from Yazid ibn Abdullah ibn Usamah ibn al-Had, that Salim ibn Abdullah ibn Umar narrated to him that Abu al-Jarrah, the freed slave of Umm Salamah, informed him that Umm Salamah, the wife of the Prophet, may Allah bless him and grant him peace, narrated to him that the Messenger of Allah, may Allah bless him and grant him peace, said: "The angels do not accompany a people among whom there is a bell."