Said R. Shemaiah to R. Abba: Might it be suggested that on account of a discharge in the day time a woman is a zabah, and that on account of one in the night she is a menstruant? — For your sake, the other replied, Scripture stated, By the time of her menstruation, implying a discharge close to the time of her menstruation. Now which is a discharge that is close to the time of her menstruation? One that occurred in the night; and yet Scripture called her a zabah. The Tanna debe Eliyahu [teaches]: Whoever repeats halachahs every day may rest assured that he will be a denizen of the world to come, for it is said, Halikoth — the world is his; read not halikoth but halakoth.