維摩經略疏垂裕記 2.208

2.208

三、大眾歡喜。「三輪不思議化」者，即身通、口說、意鑒。不謀而化，名不思議。

Third, the great assembly rejoices. Regarding "the inconceivable transformation through the three wheels": these are the physical supernormal powers, verbal preaching, and mental observation. Transforming without contrivance is called inconceivable.