Does "nashi'at al-layl" begin after Maghrib prayer (i.e., after the two evening prayers), and is it a prayer, and if so, how many rak'ahs does it have, or when does its time begin if that is not correct?

Scholars have differed regarding the meaning of "nashi'at al-layl" (the rising of the night), whether it refers to the hours of the night or to night prayer. According to the view that it refers to the hours of the night, it has been said that it is the time between Maghrib and Isha, or that it is the entire night. Then, assuming that "nashi'at al-layl" refers to its times and hours, the meaning is that prayer during these times of the night is better than prayer during the day, and it is recommended to pray abundantly at night with recitation therein. "Al-Nashi'ah" can be the prayer after Maghrib and before Isha, or after Isha, or after sleeping, and the matter is broad.