What are the duties to avoid oppressing the first wife? Is she entitled to request future overnight stays despite the lack of affection? Is the second wife entitled to request a separation if the husband spends the night with the first wife? Is this marriage considered disobedience to parents due to their rejection of it for the children's welfare?

Allah has enjoined justice among wives in terms of overnight stay, maintenance, and housing, which is an apparent and achievable justice. For one who cannot achieve it, polygamy is forbidden for him. The husband should manage his households wisely and not rush to respond to a wife's request for divorce if she seeks separation or divorces due to polygamy, as these are attempts at pressure.

As for the first wife, her relinquishment of her right to an overnight stay is considered a gift or a reconciliation. If it is a gift, she has the right to retract it and demand her right, and the husband must comply. If it is a reconciliation in exchange for not divorcing her, then her action is permissible and better than separation, in accordance with the Almighty's saying: (AND IF A WOMAN FEARS CRUELTY OR AVERSION FROM HER HUSBAND, THERE IS NO BLAME UPON EITHER OF THEM IF THEY MAKE TERMS OF SETTLEMENT BETWEEN THEM – AND SETTLEMENT IS BEST). The wife is not permitted to break the reconciliation, though the majority are of the opinion that she may.

The second wife is not permitted to request a divorce if the husband returns to his first wife, due to the Prophet's (peace be upon him) saying: (ANY WOMAN WHO ASKS HER HUSBAND FOR DIVORCE WITHOUT LEGITIMATE REASON, THE SCENT OF PARADISE WILL BE FORBIDDEN TO HER). However, if she cannot bear patience and fears that she will not fulfill her husband's rights, there is no harm in requesting a khul' (dissolution of marriage).

Parents should not prevent their son from a second marriage if he needs it, and his action without their consent is not considered disobedience in principle. Nevertheless, it is not advisable to proceed with a second marriage that jeopardizes the first marriage. It is necessary to choose a second wife who accepts being a second wife, and that the husband is not willing to destroy his first home for her.