Is one ghusl required or are two ghusls required if semen was discharged twice and ghusl was not performed after the first time?

If a man emits semen two or more times at different intervals, then performs a single ghusl (ritual bath), it suffices him. The Prophet, peace and blessings be upon him, used to go around to his wives and then perform a single ghusl. The jurists have affirmed that if multiple causes necessitating ghusl accumulate, such as repeated intercourse, or the meeting of the two circumcised parts accompanied by emission, or janabah (state of ritual impurity after sexual activity) combined with menstruation, then a single ghusl suffices, by consensus.