Lady Aisha (may Allah be pleased with her) narrates that the Messenger of Allah (peace be upon him) used to clean semen from his garment with the root of the Izkhir plant, and then he would perform prayer in that garment. And if it was dry, he would scrape it off his garment and then pray in it. The Imam reports from his teacher Muhammad bin Yahya’s chain of narration that the Prophet (peace be upon him) used to clean semen from his garment with the root of the Izkhir plant and then pray in it.