What is the ruling on one who experiences a wet dream during the day while fasting?
Machine translationRead the Arabic original
The questioner : A questioner says: A man slept with his wife on a day in Ramadan while he was fasting, and I am not exaggerating when I say he slept. Then he had a wet dream during his sleep. Does he have to make up the fast?
The Shaykh : The answer is that he does not have to make up the fast, because the emission that occurs during sleep is not by the person's own action. There is no difference whether there were causes for it, such as early intimacy or the like, and then it happened during his sleep. The important point is that this semen was emitted while he was sleeping. Therefore, he does not have to make up the fast, and his fast is valid.
The Shaykh : The answer is that he does not have to make up the fast, because the emission that occurs during sleep is not by the person's own action. There is no difference whether there were causes for it, such as early intimacy or the like, and then it happened during his sleep. The important point is that this semen was emitted while he was sleeping. Therefore, he does not have to make up the fast, and his fast is valid.
Source
دروس وفتاوى المسجد الحرام لعام 1402هـ - 10 — binothaimeen.net (1:08:14)
The Arabic text is a machine transcription of the audio recording.