shoot the foul or not?

[ixic130]

Scenario: A1 is dribbling the ball in FC being guarded by B1. A2 goes to set pick but instead, slams into B1 for a foul. Team B is in the bonus. I call a pushing foul on A2 and signal "1 and 1". My partner quickly corners me and says "no foul, its offensive, we don't shoot, possession. I'm a little stunned but I go along w his statement. We don't shoot. I can't find anything in the rules book that backs up what my partner said. Its not "offensive" (I don't think). And, I can't find anything that says "offensive" in the rule book. Only "player control"..Can anyone please advise me what is right here? Appreciate your expertise....