In the name of Allah, most Gracious, most Merciful.
222. They ask you concerning women's courses. Say, "They are a hurt and a pollution," so keep away from women in their courses, and do not approach them until they are clean. But when they have purified themselves, you may approach them in any manner, time or place ordained for you by Allah. For Allah loves those who turn to God constantly, and God loves those who keep themselves pure and clean.
The Heifer 2:222