Ruling on Combining the Regular Voluntary Prayers at Night

Question:
If a person is busy with work, is it permissible for him to pray all the regular voluntary prayers at night?

Answer:
No, you pray them at their times with the obligatory prayers: two rak'ahs before the midday prayer, two after it, two after the sunset prayer, two after the night prayer, and two before the dawn prayer, and they are like that. These are ten rak'ahs; you pray each voluntary prayer or each regular voluntary prayer with its corresponding obligatory prayer. Yes.

The presenter:
May Allah reward you, Honorable Shaykh