Musnad Ahmad 32:1693

'Affan narrated to us, Hammad narrated to us, al-Mughirah ibn Ziyad al-Thaqafi narrated to us, he heard Anas ibn Malik saying: The Messenger of Allah, peace and blessings of Allah be upon him, said: "There is no faith for the one who has no trustworthiness, and there is no religion for the one who has no covenant."