What is the ruling on a marriage contract after blaspheming the Divine Self? And are the children considered children of zina (fornication/adultery)?

Cursing the religion and cursing Allah the Almighty is a major disbelief that expels one from the fold of Islam, and no excuse is accepted for it due to ignorance or anger that has not completely removed one's sanity. If one repents and returns to Islam before the expiry of his wife's waiting period ('iddah), the marriage remains valid and the marital bond persists. However, if he does not repent until his wife's waiting period expires, the majority view is that the marriage is dissolved. Some scholars are of the opinion that if the husband returns to Islam, even after years, the marriage remains valid, but it is more cautious to renew the marriage contract. The lineage of the children is attributed to you without any issue.