Does Buddha go to Naraka (hell) to save those tormented beings?

I heard one regarded by many a Buddhist teacher said, "Buddha **will go to** Naraka to save those suffering (tormented) beings, whilst those (monks, buddhists) will want to go to the Purelands. That (Buddha going to hell) is called Great Compassion." Is this teaching correct, is it Buddha's teaching? I learnt that 1. One should bear one's own deeds and consequences (karma), neither a father could bear on behalf for the son, nor a daughter for the mother; 2. Buddha could not "give" enlightenment to anyone because enlightenment is reached by oneself; 3. If one who hasn't cultivated enough merits, one would be born in one of the Eight Obscured Places (八無暇) that Dharma couldn't be heard; one of the Eight Obscured Places is Naraka. Is this saying contradictory to 3)? Why is he saying this?