Is expiation obligatory for one who masturbates during the day in Ramadan?

Question:
If a man ejaculates semen during the day in Ramadan without intercourse, or through masturbation, does he have to fast two consecutive months, or make up the day on which he intentionally ejaculated?

Answer:
If a man intentionally ejaculates through listening, for example, or through the secret habit, he must repent to Allah and make up that day, but he owes no expiation. Expiation is specific to intercourse. As for if he masturbates and semen comes out, he must repent to Allah and abandon this vile habit, and he must make up this day. He must also remove the state of major ritual impurity by taking a full ritual bath from this. However, if it is between the states of choice, such as if he has a wet dream during the day in Ramadan, or if he thinks and ejaculates, or if a woman passes by and he looks at her and ejaculates without intention and without repeated looking, then he owes nothing. He must perform the full ritual bath for major ritual impurity, and his fast is valid, meaning he did not intend it. Having a wet dream is not by his choice, and thinking is not by his choice, so this thing that is not by his choice does not invalidate his fast. But if semen comes out from this, he must perform the full ritual bath for major ritual impurity like other people.