大般涅槃經義記 8.148

8.148

二破我分別，因緣法中無我、無人，以無我故因緣之法亦非我所則為非有，因緣相生故復非無，非有、非無名為中道。

Second, refuting the conceptual discrimination of a self: within the dharmas of dependent origination there is no self and no person; because there is no self, the dharmas of dependent origination are also not what belongs to a self, and are thus non-existent; because dependent origination arises mutually, they are furthermore not non-existent. Being neither existent nor non-existent is called the middle way.