The Briton said he was surprised that Mercedes asked him to let Rosberg through.
BUDAPEST, July 27, 2014 (AFP) - Lewis Hamilton said he was "very, very shocked" to be asked by his Mercedes team to move over and allow team-mate and title rival Nico Rosberg to pass him during Sunday's tumultuous Hungarian Grand Prix.
The incident came after 47 laps of a 70-laps race won by Australian Daniel Ricciardo for Red Bull.
The two Mercedes drivers, who finished third (Hamilton) and fourth (Rosberg), were on different strategies and Rosberg, on a three-stop plan, was using faster soft tyres at the time and had a further pit stop to make.
"Obviously I am aware that I was in the same race as him, just because he had one more stop than me doesn't mean I am not in same race," said Hamilton afterwards.
"If I let him pass, then he could pull away and come back at me later.
"I was very, very shocked that the team would ask me to do that. He didn't get close enough to overtake, I was not going to lift off and lose ground to Fernando (Alonso) or Daniel (Ricciardo), so it was a bit strange."
Hamilton was asked "not to hold him up" on lap 47, and reminded of the message on lap 52, Hamilton replied: "I'll let him through if he gets closer.... I'm not slowing down for Nico."
In turn, Rosberg asked via radio: "Why is he not letting me through?" In response he was told: "He's had the message."
This situation persisted for eight laps before Rosberg pitted for new soft tyres and a final charge.
Rosberg, who started on pole and led the opening nine laps, kept his composure afterwards, but was clearly irritated and said he could have passed Hamilton on the final lap when he had a clear tyres advantage.
"I had a chance on the last lap," he said. "I'm very annoyed that I wasn't able to make it happen. Lewis made a mistake, I tried around the outside but it didn't work out."
Rosberg, however, denied asking Mercedes to request Hamilton to allow him to pass.
"I didn't want it. It was the team that informed me that he was going to let me past," said the German.
"That was it. I don't know what happened then. We need to discuss it internally. It would not make sense for me to speak about that now."
Mercedes said it would hold a team inquiry. But Hamilton's success trimmed Rosberg's lead in the title race from 14 points to 11. The German now leads with 202, Hamilton has 191 and Ricciardo is third with 131.