The World Federation One Stop Fiqh

Ritual 444

If the pilgrim, in a state of ihram, does have sex with his wife before the wuquf at Muzdalifah, he must complete the remaining ceremonies and repeat the Hajj as mentioned earlier.

However, if he is prevented from completing the ceremonies, the rules relating to the prevented (almasdood) pilgrim would apply to him. Nevertheless, he should bear a kaffarah for having sex in addition to sacrificing the animal for hady.