Aswad bin Yazid narrates: Lady Aisha (may Allah be pleased with her) saw me washing the traces of janabah from my garment. She asked: What is this? I replied: This is the trace of janabah that got on my garment. So Lady Aisha (may Allah be pleased with her) said: I remember this about myself, it would also get on the garment of the Prophet (peace be upon him), so he would say, we would scrape it off like this.