You can pray only the Fard without the voluntary prayers. This is permissible for the necessity.

I have a question regarding praying while I am at work. when I am on a shorter shift I dont get any breaks sometimes they allow me to come in 10 mins earlier and then take a 10 min break but if its time for zohr then i dont have enough time to complete whudu and pray in time.

Prayer | March 26, 2014 10:31 am
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While i am at work is it permissible for me to pray only the fardh and not the sunna due to lack of time or is it permissible to combine prayers due to work committments?
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Dear brother, i wanted to ask about praying in the house at fajr prayers, is it acceptable?