Answer:
(Fatwa: 476/376/H=1431)
Ghusl is not wajib only by sleeping together. However, if you had intercourse or wet dream then taking a bath is wajib. It is better to have bath as soon as possible, however it is also allowable if one takes bath before Fajr salah so that he might not miss the salah.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
