The importance of Jumuah Salaah

Q: I want to ask that is jumu'ahh namaaz fard or wajib and with it a proper proof or daleel of jumah namaaz being fard or wajib? I also want the proof to be authorised.

Q: I work at a place where I am not allowed to perform Jumuah because they need me at work. I have missed a month's worth of Jumuah. I need the money as I have a lot of debts, immediate and long-term, that I need to pay off. It's difficult to find a job in this country (New Zealand), and I need some advice. What should I do?

Q: Is it permissible for a Muslim business owner to keep his business open during Jumu’ah or any other salaah time while he attends the musjid, but has a non-Muslim manager keeping the business open during this time?

Q: What is the view point on a Muslim who does not read his 5 daily Salaahs and only reads Jummah Namaaz:- If this type of a man owns a Halaal Outlet can this outlet be deemed as Halaal?

Q: Please advise if it is permissible for a muslim business to remain open during the Jumuah Salaah. The reason for remaining open, as stated by the owner, is that the business is generally very busy at that time and the business is run by the non-muslim manager during the time of Jumuah.