Fiqh-us-Sunnah Volume 1, Purification and Prayer, Fiqh 1.049.
Section : Ghusl, the complete ablution.
Ghusl means to wash the entire body with water. Says Allah in the Qur’an, “If you are sexually impure, purify yourselves.” And, “They question you concerning menstruation. Say: It is an illness, so let women alone at such times and do not have sex with them until they are cleansed” (al-Baqarah 222).