Atharvaveda · Sūkta 7.109

7.109.1

कः पृश्निं धेनुं वरुणेन दत्तामथर्वणे सुदुघां नित्यवत्साम् ।
बृहस्पतिना सख्यं जुषाणो यथावशं तन्वः कल्पयाति ॥ ७.१०९.१ ॥

Who gave the dappled cow that Varuṇa gave to Atharvan? She is easy to milk, and her calf is always with her. Enjoying friendship with Bṛhaspati, she shapes her forms as she wills.