ŚBM, 1, 1, 1, 21.2 nen mithunaṃ caryamāṇamantareṇa saṃcarāṇīti tā nātihṛtya sādayen no anāptāḥ sādayet sa yadatihṛtya sādayed asti vā agneścāpāṃ ca vibhrātṛvyamiva sa yatheva ha tadagnerbhavati yatrāsyāpa upaspṛśantyagnau hādhi bhrātṛvyaṃ vardhayed yadatihṛtya sādayed yad yo 'nāptāḥ sādayen no hābhistaṃ kāmam abhyāpayed yasmai kāmāya praṇīyante tasmād u sampratyevottareṇāhavanīyam praṇayati //

ŚBM, 4, 4, 5, 3.6 asti vai manuṣyāṇāṃ ca sarpāṇāṃ ca vibhrātṛvyam iva net tad ataḥ saṃbhavad iti /