俱舍論記 22.181

22.181

「數謂繫心至乃至得定」者，釋初章。淳熟已去不多用功，任運憶持名不作加行。放捨身心非全放捨，若未淳熟，數修加行謹卓身、心，恐心聚故不減十、恐心散故不增十。從一至十，先從入數。故《婆沙》云「先數入息，後數出息，以生時息入、死時息出故。餘文可知。

[On the phrase] 'Counting means binding the mind [...] up to attaining absorption': this explains the first heading. When one has become thoroughly proficient and no longer expends much effort, mindfully sustaining it spontaneously is called 'without applying preparation.' Relaxing the body and mind does not mean completely abandoning them; if one is not yet proficient, one repeatedly cultivates preparation, being cautious and vigilant with body and mind, neither decreasing below ten for fear that the mind will become too condensed, nor exceeding ten for fear that the mind will become distracted. One counts from one to ten, beginning first with the inhalation. Thus the *Mahāvibhāṣā* says: 'One counts the in-breath first and the out-breath later, because at birth the breath enters, and at death the breath leaves.' The remaining text can be understood.