यो ह वै प्रजातिं वेद प्रजायते ह प्रजया पशुभिः ।रेतो वै प्रजातिः ।प्रजायते ह प्रजया पशुभिः ।य एवं वेद ॥बृह. ६,१.६ ॥
In plain words
He who knows begetting is made fruitful with offspring and cattle. The seed is begetting. He is made fruitful with offspring and cattle, who knows this.