Prayer: Can night prayer be performed as two 4-rak‘ah prayers, then a 2-rak‘ah, and then witr?

Practical Laws of Islam as per the teachings of Imam Khamenei

Prayer: Can night prayer be performed as two 4-rak‘ah prayers, then a 2-rak‘ah, and then witr?

English:

Question #714:

Is it permissible to perform night prayers as follows: two four-rak‘ah prayers instead of four two-rak‘ah ones, then a two-rak‘ah one, followed by the witr prayer?

Answer #714:

It is not correct to perform the night nāfilah in the form of four-rak‘ah prayer.

-Imam Khamenei, Practical Laws of Islam, Importance and Conditions of Prayer