Musannaf Ibn Abi Shayba 33:509

Abu Usama narrated to us, he said: Jarir ibn Hazim narrated to us, he said: Ya'la ibn Hakim narrated to me, from Sulayman ibn Abi Abd Allah al-Madani, he said: Abu Umamah al-Bahili, the companion of the Messenger of Allah (may Allah bless him and grant him peace), had strapped his provisions behind him on his saddle. And I heard Ibn Umar saying: "Whoever is pleased to look at a man who is a pilgrim, let him look at Abu Umamah."