References

RCūM, 10, 54.1
  drutayo naiva nirdiṣṭāḥ śāstre dṛṣṭā api dhruvam /Context
RRS, 2, 50.1
  drutayo naiva nirdiṣṭāḥ śāstre dṛṣṭā api dṛḍham /Context