Śrīmad-Bhāgavatam · Text 11.17.39
Who is speaking and story frame
गृहार्थी सदृशीं भार्यामुद्वहेदजुगुप्सिताम् ।
यवीयसीं तु वयसा यां सवर्णामनुक्रमात् ॥ ३९ ॥
gṛhārthī sadṛśīṁ bhāryām
udvahed ajugupsitām
yavīyasīṁ tu vayasā
yāṁ sa-varṇām anu kramāt
One who desires to establish family life should marry a wife of his own caste, who is beyond reproach and younger in age. If one desires to accept many wives he must marry them after the first marriage, and each wife should be of a successively lower caste.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.