bhūriśo bhāvayiṣyasi

mithuna-of man and woman; vyavaya-sexual activities; dharmah-who accepts by religious performance; tvam-you; praja-sargam-creation of living entities; imam-this; punah-again; mithuna-of man and woman united; vyavaya-dharminyam-in her according to the religious performance of sexual intercourse; bhurisah-manifold; bhavayisyasi-you will cause to be.