RV 7.101.3
स्तरीर् उ त्वद् भवति सूत उ त्वद् यथावशं तन्वं चक्र एषः । पितुः पयः प्रति गृभ्णाति माता तेन पिता वर्धते तेन पुत्रः ॥
starīr u tvad bhavati sūta u tvad yathāvaśaṃ tanvaṃ cakra eṣaḥ | pituḥ payaḥ prati gṛbhṇāti mātā tena pitā vardhate tena putraḥ ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Now he is sterile, now begetteth offspring, even as he willeth doth he change his figure. The Father's genial flow bedews the Mother; therewith the Sire, therewith the son is nourished.
Translated by Ralph T. H. Griffith (1896)