Can a child born of zina, whose paternity has been confirmed by DNA, be given the surname lineage (bin/binti) of the man who committed zina with the mother?

Summary

According to the final position of the Shafi'i school, semen from an unlawful intercourse has no legal value in sharia, so zina does not establish lineage even when DNA confirms the biological link. The child is attributed to the mother, has no inheritance rights from the man, and the marriage guardian is the state judge (wali hakim), although a bequest may be given. The fatwa states that the child still cannot be named as the son or daughter of that man, and that the National Registration Department should consult Islamic scholars on the matter.

Written in our own words from the original fatwa — check the source before acting on it.