When the Messenger of Allah was sent and Allah reminded the Jews of the covenant that they had with Him, especially concerning Muhammad , Malik bin As-Sayf said, "By Allah! Allah never made a covenant with us about Muhammad, nor did He take a pledge from us at all.'' Allah then revealed,

﴿أَوَكُلَّمَا عَـهَدُواْ عَهْدًا نَّبَذَهُ فَرِيقٌ مِّنْهُم﴾

(Is it not (the case) that every time they make a covenant, some party among them throw it aside) Al-Hasan Al-Basri said that Allah's statement,

﴿بَلْ أَكْثَرُهُمْ لاَ يُؤْمِنُونَ﴾

(Nay! (the truth is:) most of them believe not) means, "There is not a promise that they make, but they break it and abandon it. They make a promise today and break it tomorrow.''