Q 1: What is
the ruling on illegitimate children in our time?
A:
According to the preponderant opinion of scholars, an illegitimate child follows the religion of his mother. If his mother is Muslim, he will be a Muslim. If she is Kafir (disbeliever), he will be a Kafir as well. He should be attributed to his mother not to the adulterer, and incurs no blame regarding the sin of his mother and the man who committed adultery with her. Allah (Glorified be He) said,
...and no bearer of burdens shall bear the burden of another.
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.