Hawzah News Agency – Is it obligatory to perform the usual mustaḥabbs such as adhān and iqāmah for prayers for which we are hired to perform, or it suffices to say obligatory parts?
Answer: If no special condition has been set for the prayer, the hired person only needs to perform obligatory parts of the prayer.
Source: https://www.leader.ir/en/book/32/Practical-Laws-of-Islam