Agniveshyagrihyasutra 1.6.3.12

1.6.3.12

aṅguliṃ trirudyamya prāṇasthānaṃ cakṣvādi saṃmiśya paridhīnādāya madhyamaṃ prathamaṃ praharet \

Having raised his finger three times, having touched the vital breaths, the eye and so forth, having taken the enclosing sticks, he should throw the middle one first;