so o muslims if they are unable to reply to this challenge of yours then know well that it is sent down only with the knowledge of allah and that except him there is no real god so will you now accept?
فإلم يستجيبوا لكم فاعلموا أنما أنزل بعلم الله وأن لا إله إلا هو فهل أنتم مسلمون