It is him. It's his statement from the book "Shah Rukh Can: The life & times of Shah Rukh Khan".
It wasnt personal comment. He said that. And he did what he said. In this case he was yet to make his debut. Every newcomer comes with his attitude. Nothing wrong. And no Srk wasn't jealous.
It's pointless if anybody misunderstands the context & takes Srk wrong. I am pretty sure Salman would've wanted to achieve what Big B or Dharmendra did. Infact post Aamir's success with QSQT, Salman had pledged to achieve the success bigger than Aamir or else he wouldn't be able to show his face in Bandra. He did it with MPK. Now if Salman isn't taken wrongly for his ambition, why should Srk be?
But of course the about ATG arguments don't acknowledge what the Khans did initially to earn their place in the industry.