Gaddulabaddhasutta 3.6

3.6

na viññāṇaṃ attato samanupassati, na viññāṇavantaṃ vā attānaṃ; na attani vā viññāṇaṃ, na viññāṇasmiṃ vā attānaṃ.

or consciousness as self, self as having consciousness, consciousness in self, or self in consciousness.