[Machine] The Prophet ﷺ used to wash the part of his garment that was affected by semen, then he would go out to pray and I would look at the trace of the stain on his garment in the area of washing.
النَّبِيَّ ﷺ كَانَ إِذَا أَصَابَ ثَوْبَهُ الْمَنِيُّ غَسَلَ مَا أَصَابَ مِنْهُ ثَوْبَهُ ثُمَّ خَرَجَ إِلَى الصَّلَاةِ وَأَنَا أَنْظُرُ إِلَى أَثَرِ الْبُقَعِ فِي ثَوْبِهِ ذَلِكَ فِي مَوْضِعُ الْغُسْلِ