Visuddhimagga VIII-191

Gaṇentena ca paṭhamaṃ dandhagaṇanāya dhaññamāpakagaṇanāya gaṇetabbaṃ.

数（出入息）时，最初应该慢慢的数，如量谷之人的数相似。

Ñ(VIII,191): When counting, he should at first do it slowly [that is, late] as a grain measurer does.

Dhaññamāpako hi nāḷiṃ pūretvā ‘‘eka’’nti vatvā okirati.

即量谷者充满一筒（量谷的器具）便说「一」而倒出，

Ñ: For a grain measurer, having filled his measure, says 'One', and empties it,

Puna pūrento kiñci kacavaraṃ disvā taṃ chaḍḍento ‘‘ekaṃ eka’’nti vadati.

更在充满时若见任何污物取而弃之，口中仍言「一、一」。

Ñ: and then refilling it, he goes on saying 'One, one' while removing any rubbish he may have noticed.

Esa nayo dve dvetiādīsu.

对于「二、二」等也是同样。

Ñ: And the same with 'Two, two', and so on.

Evameva imināpi assāsapassāsesu yo upaṭṭhāti, taṃ gahetvā ‘‘ekaṃ eka’’nti ādiṃ katvā yāva ‘‘dasa dasā’’ti pavattamānaṃ pavattamānaṃ upalakkhetvāva gaṇetabbaṃ.

如是此（瑜伽）者于彼现起的出息入息中即取彼（息）而作「一、一」等，[PTS 279] 这样观察其所起（之息），数至于「十、十」。

Ñ: So, taking the in-breath or the out-breath, whichever appears [most plainly], he should begin with 'One, one' [279] and count up to 'Ten, ten', noting each as it occurs.