摩訶止觀 3.6

3.6

停義者，緣心諦理，繫念現前，停住不動。《仁王》云：「入理般若名為住。」《大品》云：「以不住法住般若波羅蜜中。」此就能止得名，即是停止義。

As for the meaning of resting: the cognitive mind conforms to the true principle, keeping mindfulness present before it, resting motionless. The Benevolent Kings Sūtra says: 'Entering the principle, prajñā is called abiding.' The Large Sūtra says: 'By means of the dharma of non-abiding, one abides in prajñāpāramitā.' This receives its name from that which is able to calm; this is the meaning of resting.