What is the ruling on prayer while having committed adultery, and how does one make up for missed prayers due to it? What is required for sins to be expiated? Is a wife considered a wife merely upon the marriage contract, or after the wedding feast and bringing her to the home? If the answer is no, then what is the ruling on the daughter born [from such a union]?

The prayer is not invalidated merely by committing immoral acts. Sincere repentance, which includes cessation, remorse, and resolve, leads to the forgiveness of sins. Prayers that have been performed correctly are valid if their conditions were met, and prayers that were missed must be made up. As for what occurred between the spouses after the valid contract, it is permissible and lawful, and the daughter is attributed to the father.