If he is a Brahmana, he will obtain the fruit of observing twelve years vows and if he is of other castes, all his sins will be destroyed.
ब्राह्मणेन भवेच्चीर्णं व्रतं द्वादशवार्षिकम्। इतरेषां तु वर्णानां सर्वपापं प्रणश्यति॥