Yāska's Nirukta 1.10

1.10

``.niṣṭvaktrāsaś cid in naro bhūri tokā vṛkād iva.''.(untraced)
``.bibhyasyanto vavāśire śiśiram jīvanāya kam.''.(untraced)
śiśiram jīvanāya śiśiram śṛṇāteḥ śamnāter vā
``.ā īm enam sṛjatā sute.''.(ṛV.1,9,2)
āsṛjata enam sute
``.tam id vardhantu no giraḥ.''.(ṛV.V21,92,21;.1X,61,14)
tam vardhayantu no giraḥ stutayaḥ giro gṛṇāteḥ
``.ayam u te samatasi.''.(ṛV.1,30,4)
ayam te samatasi
ivo api dṛśyate su vidur iva su vijñāyete iva
atha api na ity eṣa id ity etena samprayujyate paribhaye