Chapter on Rules of Janabah and Methods of Purification

This narration indicates the obligation of ghusl due to al-ma’ al-akbar (seminal fluid), whether it is emitted with desire or without desire, whether in sleep or wakefulness, and in all circumstances. His statement, "He did not consider ghusl obligatory except for al-ma’ al-akbar," implies that if penetration has not occurred (i.e., the circumcised parts have not met), ghusl is not obligatory for anything else except the emission of al-ma’ al-akbar, as indicated by the preceding narrations.