Under this chapter, the following sub-chapters and hadiths have been mentioned.
عَنْ عُمَرَ بْنِ الْخَطَّابِ رَضِيَ اللَّهُ عَنْهُ قَالَ: سَأَلْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ: كَيْفَ يَصْنَعُ أَحَدُنَا إِذَا هُوَ أَجْنَبُ، ثُمَّ أَرَادَ أَنْ يَنَامَ قَبْلَ أَنْ يَغْتَسِلَ؟ قَالَ: فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ: ((يَتَوَضَّأُ وَضُوءَهُ لِلصَّلَاةِ ثُمَّ لِيَنَمْ))
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.