Hazrat Abu Huraira (may Allah be pleased with him) narrates: There are two leaders who are not truly leaders. One is a woman who goes with a group for Hajj or Umrah and she becomes menstruating; now the group cannot depart until she becomes pure or gives them permission to leave while she is still impure. And the second is a man who goes with a funeral procession; now he cannot return until he is given permission or until the deceased is buried.