 on the authority of ibn shihab that the messenger of god said whoever is cupped on wednesday or saturday and is afflicted with a fever he has no one to blame but himself.
وعن ابن شهاب أن رسول الله قال من احتجم يوم الأربعاء، أو يوم السبت فأصابه وضح فلا يلوم إلا نفسه .