Hiranyakeshigrihyasutra 1.5.18.2

1.5.18.2

imā yā gāva āgamannayakṣmā bahusūvarīḥ \ nadya iva sravantu samudra iva niṣiñcantu \ iti gā āyatīḥ pratīkṣate \2\

With (the verse), 'These cows that have come hither, free from disease and prolific, may they swim (full of wealth) like rivers; may they pour out (wealth), as (rivers discharge their floods) into the ocean'—he looks at the cows, when they are coming back.