At-Tawba 9:74 يحلفون بالله ما قالوا ولقد قالوا كلمة الكفر وكفروا بعد اسلامهم وهموا بما لم ينالوا وما نقموا الا ان اغناهم الله ورسوله من فضله فان يتوبوا يك خيرا لهم وان يتولوا يعذبهم الله عذابا اليما في الدنيا والاخرة وما لهم في الارض من ولي ولا نصير ٧٤

They swear by Allah that they said nothing (evil), but indeed they uttered blasphemy, and they did it after accepting Islam; and they meditated a plot which they were unable to carry out: this revenge of theirs was (their) only return for the bounty with which Allah and His Messenger had enriched them! If they repent, it will be best for them; but if they turn back (to their evil ways), Allah will punish them with a grievous penalty in this life and in the Hereafter: They shall have none on earth to protect or help them.