RV 1.140.7
स संस्तिरो विष्टिरः सं गृभायति जानन्न् एव जानतीर् नित्य आ शये । पुनर् वर्धन्ते अपि यन्ति देव्यम् अन्यद् वर्पः पित्रोः कृण्वते सचा ॥
sa saṃstiro viṣṭiraḥ saṃ gṛbhāyati jānann eva jānatīr nitya ā śaye | punar vardhante api yanti devyam anyad varpaḥ pitroḥ kṛṇvate sacā ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Now covered, now displayed he grasps as one who knows his resting-place in those who know him well. A second time they wax and gather Godlike power, and blending both together change their Parents' form.
Translated by Ralph T. H. Griffith (1896)