注大乘入楞伽經 7.100

7.100

言諸外道種種計度作涅槃想，既違正理竟無所成，唯增妄識馳騁散亂，往來生死不得解脫，是故勸諸菩薩應遠離也。

This means that the various non-Buddhists' various suppositions forming the notion of nirvāṇa, since they contravene correct principle, ultimately accomplish nothing; they only increase the running about and distraction of the false consciousness, coming and going in birth and death without attaining liberation. Therefore he exhorts all bodhisattvas that they should stay far away from them.