大乘起信論裂網疏 5.27

5.27

此別計如來藏為心外實法，如冥諦、勝性、虛空、大自在天等。而以有生死得涅槃者，名之為人我也。

This is a distinct conception of the tathāgatagarbha as a real entity outside the mind, like the unmanifest principle (pradhāna), the primordial substance (prakṛti), space (ākāśa), or Maheśvara. And that which undergoes saṃsāra and attains nirvāṇa they call the personal self.