‏الصيام : Hadeeth No:2592 Abdullah b. Amr (Allaah be pleased with both of them) reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) said to me: 'Abdullah b. Amr, you fast continuously and stand in prayer for the whole of night. If you do like that, your eyes would be highly strained and would sink and lose sight...

‏الحيض : Hadeeth No:585 'Urwa reported it from 'A'isha that she observed: The Messenger of Allaah (sallAllaahu alayhi wa sallam) inclined his head towards me (from the mosque) while I was in my apartment and I combed it in a state of menstruation....