首楞嚴義疏注經 10.138

10.138

「又三摩中諸善男子，堅凝正心，魔不得便。窮生類本，觀彼幽清常擾動元，於後後無生計度者，是人墜入七斷滅論。」

"Furthermore, in his samādhi, the good sons, their correct minds firm and concentrated, cannot be gotten at by māras. Exhausting the root of the categories of living beings and contemplating that subtly clear, constantly stirring origin, if he calculates that in the subsequent there is non-arising, this person falls into the theory of the seven annihilations."