كُنْتُ أَغْسِلُ الْجَنَابَةَ مِنْ ثَوْبِ النَّبِيِّ صلى الله عليه وسلم، فَيَخْرُجُ إِلَى الصَّلاَةِ، وَإِنَّ بُقَعَ الْمَاءِ فِي ثَوْبِهِ.
Aishah reported: I used to wash (the traces of) janabah from the garment of the Prophet ﷺ. Then he would go out to the prayer while the spots of water were (still) on his garment.
also in Sahih al-Bukhari 230, Sahih al-Bukhari 231, Sahih al-Bukhari 232