Jumuah

Missing Jumuah Salaah

Q: If a male misses 3 jumuahs through work purposes but he had clarified it with his boss but had no one else to put in his place, what should he do concerning reading the shahaadat? The boss has promised that he will be getting a replacement.

Minimum number of people for Jumuah Salaah to be valid

Q: The masjid in our area is fairly new. We have, for Jumu'ah, about just over a dozen musallis. It is a mixed congregation of Shaafi and Hanafi. Our imaam for Salaah passed away in September. Since then, while we are looking into appointing a new Imaam, we have invited other Ulama to conduct Jumuah. 

The last imam who came, informed us that our Jumuah is problematic as per Imam Shaafi, there should be at least 40 men. 

Is it correct? Or can we continue with Jumuah Salaah?