Did the Messenger of Allah, may Allah bless him and grant him peace, renew the marriage contract with Khadijah after he was informed of his message and the conditions for the validity of the marriage contract were revealed?

The marriage known in Islam, with its conditions and pillars, existed before Islam. Islam affirmed it and invalidated other false forms of marriage. Aisha, may Allah be pleased with her, narrated that marriage in Jahiliyyah (the pre-Islamic era of ignorance) was of four types: the marriage of today, Istibdaa' marriage (seeking conception from a noble man), marriage where a group of men would gather and have intercourse with a woman, and the marriage of prostitutes. When Muhammad, peace be upon him, was sent, he abolished all Jahiliyyah marriages except the marriage practiced by people today. His marriage, peace be upon him, to Khadijah was legitimate and with the permission of her guardian. If disbelievers embrace Islam, they are allowed to continue their conventional marriages, and they are not required to renew the marriage contract after their conversion to Islam.