After giving both songs a listen it doesn't seem like it at all but the sample is there.
It's a vocal sample taken right from the intro of ...Story To Tell of Biggie saying "Who y'all talking to?".
So where can you find the sample in the Rihanna song?
Right in between where Jay-Z says "Everything I do is BIG", you can hear the sample before he continues with the "I talk big money" line (around 0:44 in the Talk That Talk clip above).