RV 1.140.3
कृष्णप्रुतौ वेविजे अस्य सक्षिता उभा तरेते अभि मातरा शिशुम् । प्राचाजिह्वं ध्वसयन्तं तृषुच्युतम् आ साच्यं कुपयं वर्धनम् पितुः ॥
kṛṣṇaprutau vevije asya sakṣitā ubhā tarete abhi mātarā śiśum | prācājihvaṃ dhvasayantaṃ tṛṣucyutam ā sācyaṃ kupayaṃ vardhanam pituḥ ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
The pair who dwell together, moving in the dark bestir themselves: both parents hasten to the babe, Impetuous-tongued, destroying, springing swiftly forth, one to be watched and cherished, strengthener of his sire.
Translated by Ralph T. H. Griffith (1896)