Yamdukkhasutta 1.10

1.10

yadanattā taṃ ‘netaṃ mama, nesohamasmi, na meso attā’ti evametaṃ yathābhūtaṃ sammappaññāya daṭṭhabbaṃ.

And what’s not-self should be truly seen with right understanding like this: ‘This is not mine, I am not this, this is not my self.’