How did Nas and jay-z beef start?

let's clear all these biggie<<>>><<>=pac<><><jay-z<><><> nas threads 1nce al for all!!

Q.how did the nas and jay-z beef start?
A. nas refused to be on jay'z reasonble and refused to let jay on his albums
since jay fired shots at nas first he must have emotionally affected like a bi#ch



capo's quit letting n1ggas make g@y post about all this pac vs jigga vs. nas.vs.jay-z .vs. bigg the sh1t is g@y