Prayer: Is Reciting Tasbīhāt al-Arba‘ah Once in the 3rd and 4th Rak‘ah Sufficient?

Practical Laws of Islam as per the teachings of Imam Khamenei

Prayer: Is Reciting Tasbīhāt al-Arba‘ah Once in the 3rd and 4th Rak‘ah Sufficient?

English:

Question #481:

Does it suffice to recite the tasbīḥāt al-arba‘ah just once in the third and fourth rak‘ah of prayer?

Answer #481:

Yes; although it is a caution to recite them three times.

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