It is narrated from Sayyiduna Umar bin Khattab (may Allah be pleased with him), he says: I asked the Messenger of Allah (peace and blessings be upon him) that if any one of us becomes in a state of janabah and then wishes to sleep, what should he do? The Messenger of Allah (peace and blessings be upon him) said: He should perform ablution as he does for prayer, then go to sleep.
Under this chapter, the following sub-chapters and hadiths have been mentioned.