A man contracting marriage with a fifth wife in Islam

The questioner:
It is not the case that the Shaykh who married five women is given the choice to leave one of them, resulting in the loss of the last of them.

The Shaykh:
This applies in the case of disbelief: if a man marries five women while in a state of disbelief and then embraces Islam, he is given the choice to keep four of them. However, in Islam, if he contracts marriage with a fifth wife, the contract is invalid. If he contracts with a fifth wife in Islam, the contract is invalid; the contract with the fifth is invalid. Yes, he is not given the choice among them; rather, his contract with the fifth is invalid. There is a distinction between the two cases. Yes.

The questioner:
He handed her over in the form of a slave, the second one.

The Shaykh:
If he enters her during the fifth [month], it counts as unlawful sexual intercourse; his entering her counts as unlawful sexual intercourse because it is an invalid marriage, and intercourse with an invalid marriage is unlawful sexual intercourse. Does he not know this among the Muslims? He does not keep it hidden among the Muslims, yes.