عن أنس رضي الله عنه قال ما خطبنا رسول الله صلى الله عليه وسلم إلا قال لا إيمان لمن لا أمانة له ولا دين لمن لا عهد له (مجمع الزوائد #341)

Hazrat Anas (radhiyallahu ‘anhu) said,“Whenever Rasulullah (sallallahu ‘alaihi wasallam) delivered a khutbah to us, he said, ‘There is no Imaan for the one who does not possess the quality of trustworthiness (and honesty), and there is no Deen for the one who does not fulfill his pledges (and promises).’”