The Prophet (blessings and peace of Allah be upon him) used to take care of his body and garments by washing and cleaning them, whether that was in accordance with an Islamic ruling, or simply seeking to be clean. In this report, ‘Amr ibn Maymun asked Sulayman ibn Yasaar about the ruling on a garment if it becomes contaminated with semen, which is the liquid that is emitted from a man’s penis when having intercourse or a wet dream; it is a thick, white substance. He replied by quoting what ‘A’ishah (may Allah be pleased with her), the wife of the Prophet (blessings and peace of Allah be upon him) had narrated, that she used to wash the semen from the garment of the Messenger of Allah (blessings and peace of Allah be upon him), and she did not wash the entire garment. Then he would go out of her apartment to pray in the mosque, with damp spots on his garment, and he would pray wearing it. This indicates that a garment may be purified by washing away the semen. This washing applies if the semen is still wet. If it has dried, it may be scratched off the garment, as is mentioned in the report narrated by Muslim: I used to scratch it off the garment of the Messenger of Allah (blessings and peace of Allah be upon him)..