Is a husband's fondling of his wife while he is fasting during the six days of Shawwal, without reaching climax, forbidden and does it necessitate anything? And if the wife is fasting to make up for missed days and experiences climax during foreplay, is that forbidden and does it necessitate anything for her?

One who begins a voluntary fast is not obligated to complete it or make it up if it is broken. This is the view of the Shafi'is and Hanbalis. 'Aishah (may Allah be pleased with her) narrated: "O Messenger of Allah, Hays (a dish of dates, ghee, and cheese) was gifted to us." He said, "Show it to me, for I started the day fasting," and then he ate it. (Narrated by Muslim). It is, however, recommended to complete it, based on the verse: "And do not invalidate your deeds." (Muhammad: 33).

Therefore, if a man enjoys his wife while they are observing the six days of Shawwal fast, there is no sin upon them. However, they should preserve their fast from being exposed to invalidation. The fast of neither of them is invalidated unless semen is ejaculated, in which case his fast is invalidated, and it is recommended for him to make it up. However, if one of the spouses is observing an obligatory fast, such as a make-up fast or an expiatory fast, it is not permissible for him to enjoy the other in a way that leads to invalidating the fast, nor is it permissible for the other to enable him to do so, because it is forbidden to invalidate an obligatory fast and to assist in doing so.

If a fasting person kisses and does not ejaculate, his fast is not invalidated. If he ejaculates semen, his fast is invalidated without dispute. If he ejaculates madhi (pre-seminal fluid), his fast is invalidated according to Imam Ahmad and Malik, while Abu Hanifa and Shafi'i say it does not break the fast. Touching with lust is like kissing. If the fasting person has excessive lust, such that he strongly believes that if he kisses, he will ejaculate, then kissing is not permissible for him. If he does not strongly believe this, then kissing is disliked for him. The first opinion is more sound and is supported by evidence.