Musannaf Ibn Abi Shayba 27:777

Waki' narrated to us, from Sufyan, from Nusayr ibn Dhu'luq, who said: I heard Ibn Umar saying: Do not revile the companions of the Messenger of Allah, may Allah bless him and grant him peace, for the standing of one of them for an hour is better than the deeds of one of you for a lifetime.