Bhagavata Purana 7.11.13
Srimad Bhagavatam · 11 · Verse 13
Sanskrit Original
संस्कारा यत्राविच्छिन्ना: स द्विजोऽजो जगाद यम् । इज्याध्ययनदानानि विहितानि द्विजन्मनाम् । जन्मकर्मावदातानां क्रियाश्चाश्रमचोदिता: ॥ १३ ॥
saṁskārā yatrāvicchinnāḥ sa dvijo ’jo jagāda yam ijyādhyayana-dānāni vihitāni dvijanmanām janma-karmāvadātānāṁ kriyāś cāśrama-coditāḥ
Those who have been reformed by the garbhādhāna ceremony and other prescribed reformatory methods, performed with Vedic mantras and without interruption, and who have been approved by Lord Brahmā, are dvijas, or twice-born. Such brāhmaṇas, kṣatriyas and vaiśyas, purified by their family traditions and by their behavior, should worship the Lord, study the Vedas and give charity. In this system, they should follow the principles of the four āśramas [brahmacarya, gṛhastha, vānaprastha and sannyāsa].