Know, may God help you, that those who recite Tahajjud do not have a special, divine name that gives them Tahajjud and makes them stay in it, just as someone who stands up all night long has a divine name that calls him to it and moves him. Tahajjud refers to one who gets up and sleeps and gets up and sleeps and gets up. So whoever does not spend the night in prayer with his Lord is not like that. With Muhajjud, God Almighty said, “And from the night, so perform a voluntary prayer with it as a voluntary prayer for you,” and He said, “Indeed, your Lord knows that you stand up during two-thirds of the night, one-half of it, and one-third of it.”