大方廣佛華嚴經疏 19.9

19.9

二身業者，身之作用名為身業，語意亦然。十中，四儀無記，餘六通善惡，故非梵行。

Second, bodily karma: the functioning of the body is called bodily karma; speech and mind are also like this. Among the ten, the four deportments are indeterminate, while the remaining six share in good and evil; therefore, they are not pure practice.