In "Agon-kyo Sutra," as translated into Chinese, there are descriptions that are older than those transmitted to Theravada Buddhism or those that seem to have been translated into Chinese from Sanskrit.
漢訳の『阿含経』には上座部に伝わったより古い形態のものがあったり、あきらかにサンスクリット語からの漢訳と考えられるものがある。