Skandapurana 7.19.p45

7.19.p45

tadvaśādutkramantyete tasmim̐tiṣṭhanti saṃsthitāḥ .
nābhībandhanamāsādya36 nāḍīnāṃ vaktramāsthitam . . 21 . .
dvitīyaṃ karṇikāyāntu tṛtīyaṃ tālusaṃsthitam27 .
kṣurikā paraśuḥ śūlaṃ trividhotkrāntirucyate . .22 ..

Under its control they depart; in it they remain situated.
Reaching the knot of the navel, situated at the mouth of the channels, (21)
the second is in the pericarp, and the third is situated in the palate.
The knife, the axe, and the trident: thus the three-fold departure is described. (22)