Yāska's Nirukta 6.19

6.19

``yo asmai ghraṃsa uta vā ya ūdhani somam sunoti bhavati dyumām aha/
apāpa śakras tutanuṣṭimūhati tanūśrubhram maghavā yaḥ kavāsasvah/(ṛV.5,34,3)''
ghraṃsa ity aharnāma grasyanto asmin rasāh/
gorūdha uddhatataram bhavaty uponnaddham iti vā/
sneha anupradāna sāmānyād rātrir apyūdha ucyate/
sa yo asmā ahany api vā rātrau somam sunoti bhavaty aha dyotanavān/
apohaty apohati śakrastitaniṣum dharma saṃtānād apetam alaṃkariṣṇumayajvānam tanūśubhram tanūśomayitāram maghavā yaḥ kavāsasvo yasya kapūyāḥ sakhāyah/
``nyāvidhyadilābiśasya dṛḷhā vi śṛṅgiṇam abhinacchuṣṇam indrah/''
niravidhyadilābilaśayasya dṛḍhāni vyabhinacchṛṅgiṇam śuṣṇam indrah/