The ruling on one who does not rise for the Fajr prayer due to heavy sleep

Question:
Honorable Shaykh, a man whose entire household does not pray the Fajr prayer. His sleep is heavy and he is unable to rise to perform the prayer. He informs his family of this, but they do not pay attention to him. What should that man do?

Answer:
And the shepherd must take charge of the household and compel them to rise for the prayer. As for if he has no authority over the others.
And if he is able to leave the house and reside in another place, he must do so. He must move from this house and not stay in his family's house where they do not pray and do not rise for the prayer in the house. He should move to another house. And regarding heavy sleep, there is nothing to wake him up except that he goes to bed early in the night, from the beginning of the night, in order to rise in the last part of the night. And among that is that he sets something to alert him to rise, such as placing an alarm clock with him. When the time comes that he wants to be woken up, the clock rings, and the one who is eager for his prayer will find what wakes him up, by the permission of Allah. Yes.