肇論新疏 2.132

2.132

相與而無，故物莫之有（真）；相與而有，故物莫之無（妄）。物莫之無，故為緣之所起（妄）；物莫之有，故則緣所不能生（真）。物者，通屬真妄心境。

Because they mutually do not exist, no thing exists (true); because they mutually exist, no thing is non-existent (deluded). Because no thing is non-existent, they are what is arisen from conditions (deluded); because no thing exists, conditions are incapable of producing them (true). "Thing" applies generally to both true and deluded minds and objects.