Whether paystub of oct from is required empA to do H1B transfer from empB?

I have got my h1B approved from employer A and is active from Oct 2013. Now I have got a offer for H1B transfer from employer B. My employer A has not yet generated paystubs for me and it is going to be one month since my H1B has started.

Now my question is , whether paystub of oct from employer A is required to do H1B transfer from employer B in my case?