After being thus instructed, the King gave up the future happiness of sexual intercourse and by destiny remained sonless. Later, with the King’s permission, the great saint Vasiṣṭha begot a child in the womb of Madayantī.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तत ऊर्ध्वं स तत्याज स्त्रीसुखं कर्मणाप्रजाः । वसिष्ठस्तदनुज्ञातो मदयन्त्यां प्रजामधात्
tata ūrdhvaṃ sa tatyāja strīsukhaṃ karmaṇāprajāḥ | vasiṣṭhastadanujñāto madayantyāṃ prajāmadhāt
SB 9.9.38