Standing in night prayer, then sleeping after the dawn prayer or waiting for the sun to rise

Question:
We return at the beginning of this episode to a message received by the program from one of our female listeners. At the end of her message, she signs off as “Your sister in Allah. Qaf-Mim-Ayn.” Our sister, we have presented some of her questions in previous episodes, and in this episode she asks and says: Some people stand up at night for the Tahajjud prayer in the last third of the night, and usually at least an hour before Fajr, then they stay awake until Fajr and pray Fajr, and then they sleep. And since, of course, they cannot stay awake until the sun rises, what is your honorable opinion on that? And is it better for a person to wait after Fajr until the sun rises, to remember Allah the Exalted and read the Qur'an during this period? Please guide us. May Allah reward you with good.

Answer:
May Allah send prayers and peace upon our Prophet Muhammad, and upon his family and all his Companions. After that, the obligatory duty of every Muslim is to stand up for the Fajr prayer and to perform it: the man with the congregation in the mosque, and the woman in her home, at its time when the dawn breaks. This is the obligation. It is emphasized that he should pray two rak'ahs before it, the rawatib (the regular voluntary prayers attached to the obligatory ones).
As for standing in prayer before the Fajr prayer, this is among the best of the recommended acts and among the most excellent of the voluntary prayers, namely the night prayer. If he is granted success in praying the Fajr prayer at its time, and with the congregation, and is also granted success in standing up before it from the night, then this is light upon light, and an increase in good. He should pray whatever is easy for him of the night prayer, and conclude his prayer

The presenter:
May Allah reward you with good, and may Allah reward you.