I am exhausted from waking my children for the Fajr prayer; is there a specific time limit for me to wake them?

Question:
The questioner, Umm 'Abd al-'Aziz from al-Madinah al-Munawwarah, says: My children stay up late at night and then sleep just before Fajr. When I wake them for the Fajr prayer, they often cannot get up. I continue waking them until I am exhausted and lose hope. I ask you to clarify the specific time limit for me to wake them. Is it until the iqamah, until the end of the prayer, or until what time?

Answer:
It is necessary to wake them for the prayer, and they must not be left to sleep and abandon the Fajr prayer. It is necessary to wake them, bearing the hardship and exercising patience in doing so, for there is reward in that. However, it is not permissible to stay up late in a way that makes one lazy about the Fajr prayer or heavy for the Fajr prayer. Rather, a person should sleep at night only as much as is needed to get his rest so that he can get up for the Fajr prayer. He should make his calculations accordingly, since the Fajr prayer is obligatory for every Muslim man and woman. He should make his calculations accordingly and go to bed early so that he can get up for the Fajr prayer with energy. In any case, it is obligatory to be patient and wake them until they pray.