Musnad Ahmad 541:13

'Abdullah ibn Yazid narrated to us, he said: Musa narrated to us, he said: I heard my father saying: I heard 'Amr ibn al-'As addressing the people in Egypt, saying: "How far is your guidance from the guidance of your Prophet, may Allah bless him and grant him peace. As for him, he was the most ascetic of people regarding the worldly life. And as for you, you are the most desirous of people for it."