if they argue with you say i have surrendered myself to god and those who follow me. and say to those who were given the scripture and to the unlearned have you surrendered? if they have surrendered then they are guided but if they turn away then your duty is to convey. god is seeing of the 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