"I used to serve the Messenger of Allah ﷺ and when he wanted to perform Ghusl he said: 'Turn your back.' So I turned my back to him and concealed him."  

كُنْتُ أَخْدُمُ رَسُولَ اللَّهِ ﷺ فَكَانَ إِذَا أَرَادَ أَنْ يَغْتَسِلَ قَالَ وَلِّنِي قَفَاكَ فَأُوَلِّيهِ قَفَاىَ فَأَسْتُرُهُ بِهِ  

"Who is this?" She said: "Umm Hani'." When he had finished his Ghusl he stood up and prayed eight Rak'ahs wrapped in a garment.  

أَنَّهَا ذَهَبَتْ إِلَى النَّبِيِّ ﷺ يَوْمَ الْفَتْحِ فَوَجَدَتْهُ يَغْتَسِلُ وَفَاطِمَةُ تَسْتُرُهُ بِثَوْبٍ فَسَلَّمَتْ فَقَالَ مَنْ هَذَا قُلْتُ أُمُّ هَانِئٍ فَلَمَّا فَرَغَ مِنْ غُسْلِهِ قَامَ فَصَلَّى ثَمَانِيَ رَكَعَاتٍ فِي ثَوْبٍ مُلْتَحِفًا بِهِ