AVŚ 6.133.4
श्रद्धाया दुहिता तपसो ऽधि जाता स्वसा ऋषीणां भूतकृतां बभूव । सा नो मेखले मतिम् आ धेहि मेधाम् अथो नो धेहि तप इन्द्रियं च ॥४॥
śraddhāyā duhitā tapaso 'dhi jātā svasā ṛṣīṇāṃ bhūtakṛtāṃ babhūva | sā no mekhale matim ā dhehi medhām atho no dhehi tapa indriyaṃ ca ||4||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Daughter of faith, born out of fervor, sister of the being-making seers was she; do thou, O girdle, assign to us thought (matí), wisdom; also assign to us fervor and Indra's power.
Translated by William Dwight Whitney (1905)