References

RCūM, 5, 79.2
  kaṇṭhādho dvyaṅgule deśe jalādhāraṃ hi tatra ca //Context
RHT, 2, 9.2
  kaṇṭhādadhaḥ samucchritaṃ caturaṅgulaṃ kṛtajalādhāram //Context