藥師經疏 1.26

1.26

經。此等至乃欲相損　二相損。謂由乖離惱亂自他起身口意三種惡業。展轉常為不饒益事。

Sūtra: These [...] to [...] even wishing to harm one another. Second, mutually harming. This means that through discord, disturbing self and others, they give rise to the three evil karmas of body, speech, and mind, mutually and constantly performing unbeneficial deeds.