Reference:: Fataawa Ramadhaan v2 p439 no.363
Question: Is it permissible for the traveller to have sexual intercourse with his wife during the day of Ramadhaan?
Response: In the Name of Allaah and all Praise is for Allaah. If he were a traveller or suffering from an illness which permitted him to break his fast then there is no expiation nor problem for him but, instead, it is for him to make up the day for which he had sexual intercourse with his wife. This is because the traveller and the one who is ill are permitted to break the fast, engage in sexual intercourse and the like of this. Allaah (Subhaanahu wa-Ta’aala) has said:
The ruling for the woman in this regard is the [same] ruling [as] for the man. So, if she were traveling or suffering from an illness which made it difficult for her to fast, there would be no expiation for her to carry out.
