Jesus has no father:

After this debate the Christian may say in argument: “No. The Gospel means by this the real blood relation, for all those mentioned have known fathers while Jesus has no father; therefore, he is the son of Allah in reality.” Your answer would be: “But Adam (peace be upon him) also came to life without a father and even without a mother. Moreover, in the third Chapter of Luke we read in the lineage of Adam: “Adam the son of Allah”, yet none of you say he is really the son of Allah but he is so figuratively. Otherwise, we would wrong him, for he would be more entitled to that lineage than Jesus (peace be upon him) because he has neither a father nor a mother. Allah (SWT) says: “When I have fashioned him (in due proportion) and breathed into him of My spirit….” (XV: 29) Allah (SWT) also says: “The similitude of Jesus before Allah is as that of Adam; He created him from dust, and then said to him: ‘Be’ and he was.” (III: 59)  Eve also came to life by a miraculous method from Adam (peace be upon him), yet nobody says she is the daughter of Allah. Angels (peace be upon them) have no mother or fathers, and in Luke they are referred to thus: “for they are equal unto the angels; and are the children of God.”[1]

The truth is that the term “the son of Allah” was common among the Israelites. “The Jews were its founders, as they called themselves “the children of Allah and His beloved ones” and recorded this in their scriptures. When Allah (SWT) sent Jesus the son of Mary among them, the term was in circulation and they continued using it even after their conversion to Christianity. We find the New Testament replete with this term in all its paragraphs. With time Christians came to believe that Jesus (peace be upon him) is more entitled to this epithet that any others.[2]