Can the children of disbelievers be considered children of fornication, given that their fathers did not contract a valid marriage with their mothers?

Question:
May Allah reward you, Honorable Shaykh. This questioner asks: Can the children of disbelievers be considered children of fornication, given that their fathers did not contract a valid marriage with their mothers?

Answer:
No, their contracts are valid among themselves, and their children are legitimate. Their contracts among themselves are valid, and their children are legitimate. For this reason, when disbelievers embraced Islam, the Prophet (peace and blessings be upon him) did not order them to renew their contracts, nor did he deny their children to them. And Allah (Exalted and Majestic is He) refers to Abu Lahab and his wife as his wife, and refers to the wife of Pharaoh as the wife of Pharaoh, calling her the wife of Pharaoh, even though he was a disbeliever. So their contracts among themselves are valid, and their children are considered legitimate, and their lineage is established for them. Yes.