(65) باب إِذَا غَسَلَ الْجَنَابَةَ أَوْ غَيْرَهَا فَلَمْ يَذْهَبْ أَثَرُهُ
Narrated `Amr bin Maimun:
I heard Sulaiman bin Yasar talking about the clothes soiled with semen. He said that `Aisha had said, "I used to wash it off the clothes of Allah's Messenger (ﷺ) and he would go for the prayers while water spots were still visible on them.
Reference: Sahih al-Bukhari 231
In-book reference: Book 4, Hadith 98
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 4, Hadith 231