Islamic Sheria compliant bank

I wanted to buy stocks and plot through Islamic Sheria compliant bank I was told to bring invoice and I will sign contract agreement that I will buy the products after that is when they will purchase the products from the initial owner.so what I want to asked is that right Islamically

Assalaamu alaykum brother,

Which bank is this through?

Waaleykum Salam warahamatullah wabarakat.
Thank you for your reply I m from Kenya ,the bank I went to is frst community Bank and Kenya commacial bank section called halal .but even other Islamic bank that operate in Kenya is working just like that for example gulf of Africa bank.

Wa alaykum salaam,

I would advise you to consult the Shariah board of the bank.