Sunan an-Nasa'i
Sunan an-Nasa'i 404
أَخْبَرَنَا شُعَيْبُ بْنُ يُوسُفَ، قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ، عَنْ مُعَاوِيَةَ بْنِ صَالِحٍ، عَنْ عَبْدِ اللَّهِ بْنِ أَبِي قَيْسٍ، قَالَ سَأَلْتُ عَائِشَةَ كَيْفَ كَانَ نَوْمُ رَسُولِ اللَّهِ صلى الله عليه وسلم فِي الْجَنَابَةِ أَيَغْتَسِلُ قَبْلَ أَنْ يَنَامَ أَوْ يَنَامُ قَبْلَ أَنْ يَغْتَسِلَ قَالَتْ كُلُّ ذَلِكَ قَدْ كَانَ يَفْعَلُ رُبَّمَا اغْتَسَلَ فَنَامَ وَرُبَّمَا تَوَضَّأَ فَنَامَ .
Shu'ayb ibn Yusuf informed us: 'Abd al-Rahman ibn Mahdi narrated to us, from Mu'awiyah ibn Salih, from 'Abdullah ibn Abi Qays, who said: I asked 'A'ishah: 'How would the Messenger of Allah (ﷺ) sleep while in a state of janabah? Would he perform ghusl before sleeping, or sleep before performing ghusl?' She said: 'He did both. Sometimes he performed ghusl and then slept, and sometimes he performed ablution and then slept.'
Translation notes
The complete chain is included although the English witness begins with 'Abdullah ibn Abi Qays.
أَخْبَرَنَا شُعَيْبُ بْنُ يُوسُفَ،
The English witness omits the chain preceding 'Abdullah ibn Abi Qays.
Please verify the chain against the Arabic source.