What is the ruling on the fasting of one who ejaculates after looking at a woman?

The questioner : The questioner asks: What is the ruling on the fasting of one who ejaculates on a day in Ramadan after looking at the beauty of a woman, which arouses desire?

The Shaykh : First, we advise all those who are fasting to fear Allah the Exalted and not to cast the forbidden gaze. A person who casts his gaze at women will inevitably fall into tribulation, for the gaze is one of the arrows of Satan, may Allah protect us from him. If a person makes it a habit to look at every beautiful woman he passes, his heart will inevitably be harmed, his faith will be diminished, and he will fall into matters from which he cannot escape in his dealings. However, if the glance was fleeting, and the person has a strong desire, and he ejaculated merely upon looking at this woman, then his fast is valid, because this was not due to his fasting. But if he looks and contemplates the beauty of this woman until he ejaculates, then his fast is invalidated by that, and it is obligatory for him to make it up by fasting one day in place of it after Ramadan.