It has been laid down, O grandfather that a Brahmana can take four wives, viz., one who belongs to his own caste, one who is a Kshatriya, one who is a Vaishya, and one who is a Shudra, if the Brahmana wishes to satisfy the desire of sexual intercourse.
चतस्रो विहिता भार्या ब्राह्मणस्य पितामह। ब्राह्मणी क्षत्रिया वैश्या शूद्रा च रतिमिच्छतः॥