Musnad Abu Ya'la al-Mawsili 139:6

Abu Khaythama narrated to us, Jarir narrated to us, from Sulayman al-Taymi, from Anas ibn Malik, who said: There was a man who was called Anjashah who used to drive [the camels carrying] the wives of the Prophet, may Allah bless him and grant him peace. The Prophet, may Allah bless him and grant him peace, said to him: "O Anjashah, gently; drive [them] with the glass vessels."