Yahya related to me from Malik from Hisham ibn Urwa from his father that A'isha, the wife of the Prophet ﷺ used to say, "If you have intercourse with your wife and then wish to go to sleep before doing ghusl, do not sleep until you have done wudu as for prayer."
عَنْ عَائِشَةَ زَوْجِ النَّبِيِّ ﷺ أَنَّهَا كَانَتْ تَقُولُ إِذَا أَصَابَ أَحَدُكُمُ الْمَرْأَةَ ثُمَّ أَرَادَ أَنْ يَنَامَ قَبْلَ أَنْ يَغْتَسِلَ فَلاَ يَنَمْ حَتَّى يَتَوَضَّأَ وُضُوءَهُ لِلصَّلاَةِ
[Machine] Aisha, the wife of the Prophet ﷺ , narrated that she asked him, "What did the Messenger of Allah do when he was in a state of major ritual impurity (junub) and wanted to sleep before performing ablution?" She said, "He would perform ablution for prayer and then go to sleep."
عَنْ عَائِشَةَ زَوْجِ النَّبِيِّ ﷺ قَالَ سَأَلْتُهَا كَيْفَ كَانَ رَسُولُ اللهِ يَصْنَعُ إِذَا هُوَ جُنُبٌ وَأَرَادَ أَنْ يَنَامَ قَبْلَ أَنْ يَغْتَسِلَ؟ قَالَتْ كَانَ يَتَوَضَّأُ وُضُوءَهُ لِلصَّلَاةِ ثُمَّ يَنَامُ
"عَنْ عمر قالَ: سألتُ رسولَ اللَّه ﷺ كَيْفَ يصنعُ أحدُنَا إِذَا هُوَ أجْنَبَ، ثم أرادَ أن ينامَ قبل أن يَغْتَسِل؟ فَقَالَ: لِيتَوَضَّأ وضوءَهُ للصَّلَاةِ، ثمَّ لِيَنَمْ".