iti—thus; labdha-vyavasthānaḥ—getting the opportunity to exchange his old age; putram—unto his son; jyeṣṭham—the eldest; avocata—he requested; yado—O Yadu; tāta—you are my beloved son; pratīccha—kindly exchange; imām—this; jarām—invalidity; dehi—and give; nijam—your own; vayaḥ—youth.