All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger. We ask Allaah to exalt his mention as well as that of his family and all his companions.
The father of Maahir and his mother are not Mahaarim (non-marriageable relatives) for Firaas or Farah, rather they are marriageable to them. For more benefit, please refer to Fatwa 84143.
Allaah Knows best.