And Abu Bakr ibn al-Nadr ibn Abi al-Nadr narrated to us, saying: Abu al-Nadr narrated to me, saying: Ubaydullah al-Ashja'i narrated to me, from Sufyan, from al-A'mash, with this same chain of transmission — a similar report, except that he did not say "on the Day of Resurrection," and he added: "And the covenant of the Muslims is one, binding upon the humblest of them. Whoever breaks a covenant with a Muslim, upon him is the curse of Allah, the angels, and all people; neither his obligatory nor voluntary deeds will be accepted from him on the Day of Resurrection."