He has no father. Isa is a miracle; the example of Isa with Allah is like the example of Adam.
He created him from dust, then said to him, "Be," and he was. So Isa, son of Maryam, is attributed to his mother because he has no father, a miracle.
Isa, peace be upon him, has no father, so he is not attributed to a father. That is why some scholars say: in the Noble Quran, Isa never says, "O my people."
He does not say, "O my people," but rather says, "O Children of Israel." He does not say, "O my people."
Because he is not their child, but rather the child of Maryam. He is a miracle, Isa, peace be upon him.