I asked ʿAisha about the clothes soiled with semen. She replied, "I used to wash it off the clothes of Messenger of Allah ﷺ and he would go for the prayer while water spots were still visible. "  

كُنْتُ أَغْسِلُهُ مِنْ ثَوْبِ رَسُولِ اللَّهِ ﷺ فَيَخْرُجُ إِلَى الصَّلاَةِ وَأَثَرُ الْغَسْلِ فِي ثَوْبِهِ بُقَعُ الْمَاءِ