What is the ruling on marriage contracts conducted by a father for his daughters while he utters blasphemy, does not fast, and does not pray, even though he knows that he immediately seeks forgiveness? And what is the ruling on his mother remaining with him after he started praying and fasting and stopped uttering blasphemy? And are the daughters' marriages void in such widespread cases?

There is no doubt about the gravity of neglecting prayer and fasting without a valid excuse. However, abandoning them out of complacency and laziness does not constitute disbelief according to the majority of jurists. Greater than that is uttering disbelief intentionally.

As long as the father is generally considered a Muslim, his actions, such as his guardianship over his daughters, are valid, and he inherits and is inherited from, unless a Shariah judge rules him to be an apostate. Ruling on a deviation from the norm requires examining the reality of what he uttered, whether it necessitates disbelief, and whether there is anything that prevents his excommunication, such as intense anger.

The fundamental principle is that one whose Islam is established with certainty does not lose it except with a certainty of equal measure. The father might have repented and sought forgiveness, or prayed; by his prayer and his utterance of the two testimonies within it, he would have returned to Islam. Al-Bahuti said: "If a disbeliever, regardless of their type, prays in the abode of Islam or war, in congregation or individually, in a mosque or elsewhere, they are considered a Muslim by ruling."

Therefore, it is not permissible to rush to judge the invalidity of Muslims' marriages merely because these actions and statements are widespread among them.