Musnad Ahmad 769:49

Muhammad ibn Ja‘far narrated to us, Shu‘bah narrated to us, from Abu Ya‘fur, who said: Shariki and I were with him when he asked ‘Abdullah ibn Abi Awfa about locusts. He said: "There is no harm in it." He said: "I went on seven military expeditions with the Messenger of Allah, may Allah bless him and grant him peace, and we used to eat them."