Ali ibn Ibrahim from Muhammad ibn Isa, from Yunus, from Abdullah ibn Sinan, from Abu Abdillah عليه السلام. He (Narrator) said: I asked Imam عليه السلام about a woman who becomes junub (in a state of major ritual impurity) and then begins menstruating. Is she required to perform ghusl (ritual bath) for janabah (sexual impurity)? Imam عليه السلام replied: "The ghusl for janabah and menstruation is one (i.e., a single ghusl suffices for both)."