if they argue with you say i have submitted my will to allah and he who follows me. and say to those who were given the book and the uninstructed ones do you submit? if they submit they will certainly be guided but if they turn away then your duty is only to communicate and allah watches his servants.
فإن حاجوك فقل أسلمت وجهي لله ومن اتبعن وقل للذين أوتوا الكتاب والأميين أأسلمتم فإن أسلموا فقد اهتدوا وإن تولوا فإنما عليك البلاغ والله بصير بالعباد