One of the professors of Riaz university is dr. Naser al- Din Ghaffari.
His book was called,”Principles of Shia Emami religion”
which is considered as a typical thesis of Saudi Arabis`s history.
and now is taught in international university of Madineh, for 3 years in master period.
He clearly wrote in volume3, page 1392 of his book
Khomeini had inserted his name in the Call to pray
And even his name is precedent to prophet Muhammad(pbuh&h) `s name
In Iran, first it’s declared that Khomeini is the leader of Iran and all the (Muslims) societies, they call the pray. As:
Allah is the greatest, Allah is the greatest ,Khomeini is [our]leader, I bear witness that Muhammad is the Messenger of Allah