Is the Hadith, "It is a duty upon every Muslim to perform ghusl every seven days," referring to the ghusl of Friday, or is it general, including women as well?

The mentioned hadith is what was authentically reported from Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "It is a right upon every Muslim to perform ghusl every seven days, washing his head and body on that day." This ghusl is on Friday.

The general principle is that religious discourse includes both men and women, unless there is evidence that specifies one of them. Therefore, the permissibility of ghusl on Friday includes both men and women, even if Friday prayer is not obligatory upon women.