Can a Muslim tell fellow Muslims that because their name is not from the Qur’an, they are not Muslims? Secondly, is it permissible to name a daughter after her father’s name? Also, can a Muslim judge another Muslim?

Most Muslim names in the world today are not from the Qur'an. Furthermore, there is no requirement in Islam that people have names from the Qur'an.

Daughters should not be named after fathers. The father's name is a male name, and daughter's name should be a female name.

In Islamic courts, Muslims judge other Muslims.