Does masturbating break the fast if semen is not discharged until after urination in the form of a viscous fluid?

First: Masturbation is forbidden in Islam for both men and women. The ways to prevent it are fasting, supplication (du'a), and marriage for those who are able.

Second: Masturbation invalidates the fast if it leads to the emission of semen. However, if there is no seminal emission, the fast is not invalidated.

Third: If a man feels the movement of semen during masturbation and holds his penis so that nothing is emitted, then neither ghusl (ritual bath) is required nor is his fast invalidated, as long as no semen is emitted. However, if semen is emitted after holding or after a short period, then ghusl is required and the fast is invalidated.

If semen is not emitted during masturbation but is emitted later, then the fast is invalidated and must be made up.