Volume 2, Book 13, Number 25:
Narrated Aisha:
(the wife of the Prophet) The people used to come from their abodes and from Al-‘Awali (i.e. out –
skirts of Medina up to a distance of four miles or more from Medina). They used to pass through
dust and used to be drenched with sweat and covered with dust; so sweat used to trickle from them.
One of them came to Allah’s Apostle who was in my house. The Prophet said to him, “I wish that you
keep yourself clean on this day of yours (i.e. take a bath).”