سنن أبي داود

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 Messenger of Allah (ﷺ) that Tuesday is the day of blood in which there is an hour when it does not stop.