What is the ruling on praying behind an imam who always makes qunut in the Fajr prayer, secretly, after the recitation in the second rak'ah?

Question:
May Allah reward you, Honorable Shaykh. This questioner says: Is the prayer valid behind an imam who makes qunut throughout the year in the Fajr prayer, where his qunut is secret and not loud, and it is after reciting the second surah in the second rak'ah?

Answer:
Some scholars hold this view. The qunut in the Fajr prayer on a permanent basis is held by some scholars, such as Imam al-Shafi'i (may Allah have mercy on him). The Shafi'is hold that the prayer is valid behind one who makes qunut. If he is a Shafi'i and makes qunut, your prayer behind him is valid, whether he recites the qunut loudly or not. The prayer behind him is valid because this does not invalidate the prayer.
And because it has a semblance of evidence, the prayer is not invalidated in this case, and there is no harm in you praying behind him; your prayer is valid. As for the qunut before bowing or after bowing, this is a matter of scholarly disagreement, but the stronger position is that it is after bowing. This is what the Prophet (peace and blessings be upon him) did: when he raised his head from the last bowing of the Fajr prayer, he would make qunut in times of calamity. Likewise, in the witr prayer on a permanent basis, he would make qunut in the witr, specifically for calamities. This discussion is regarding the obligatory prayer, the Fajr prayer. A group of scholars hold that it is prescribed permanently, but the majority, which is the correct and stronger position, is that the qunut in the Fajr prayer is not prescribed except in times of calamity only.