Medicine (Kitab Al-Tibb)
Dawud :: Book 28 : Hadith 3853
Narrated Kabshah daughter of AbuBakrah:
(the narrator other than Musa said that Kayyisah daughter of AbuBakrah) She said that her father used to forbid his family to have themselves cupped on a Tuesday, and used to assert on the authority of the Apostle of Allah (peace_be_upon_him) that Tuesday is the day of blood in which there is an hour when it does not stop.