Yāska's Nirukta 82.8

82.8

"vrāḥ (20)"-iti, anavagatam | "vrātyāḥ"-ityavagamaḥ || "gobhi̱ryadī̱manve̍ a̱smanmṛ̱gaṃ na vrā mṛ̱gaya̍nte | a̱bhitsa̍ranti dhe̱nubhi̍ḥ || (ṛ0 saṃ0 5, 7, 18, 1)"-iti ||
kāṇvaśca medhātithiḥ, priyamedhaścāṅgirasaḥ, aindraṃ sūktaṃ dadṛśatuḥ | tatraiṣābhiplavasya ṣaḍahasya dvitīye'hani marutvatīye śastre anucaratve śasyate | he bhagavannindra ! 'yad īm' yadyapi tvām' 'anye' yajamānāḥ 'gobhiḥ' vāgbhiḥ stutilakṣaṇābhiḥ, 'dhenubhiḥ' ca tarpayitrībhirāhutibhiḥ 'abhitsaranti' abhigacchanti, abhivyāpnuvanti, tathāpyasmāneva pratyabhyehi | kiṃ kāraṇam ? dūteḥ- yasmādete'smābhiratiriktyā bhaktyānyebhyo yajamānebhyaḥ sakāśāt "vrā" "vrātyāḥ" "praiṣāḥ" yuṣmatsaṃstavasaṃyuktāḥ tvāṃ prati prahitāḥ 'mṛgaṃ na' "mṛgamiva" itare lubdhakāḥ vrātyāḥ "mṛgayante" mārgayante tvām, tasmād bhaktyatirekāt viśeṣahetorasmāneva pratyabhyehi || evametasminmantre mṛgasambandhāt "vrāḥ"-iti śabdena lubdhakā ucyante ityupapattiḥ |