Is a wife's fast valid if she completed her sexual desire through masturbation after incomplete intercourse before Fajr, and she stopped at the Adhan but ejaculation occurred after stopping?

Fasting is not invalidated by the emission of semen if the penis is withdrawn at the break of dawn, even if the semen is discharged after withdrawal. This is the view held by the jurists. However, one must repent from masturbation.