It is narrated from Hazrat Aisha (may Allah be pleased with her) that sometimes the Prophet (peace and blessings be upon him) would see traces of semen on the garment of one of us, so he would scrape it off, and at that time their garments were made of wool.
Hadith Referenceمسند احمد / مسند النساء / 26264
Hadith Gradingحکم دارالسلام:حديث ضعيف بهذا اللفظ ، تفرد به جعفر بن برقان