He who passes three years, taking one meal a day and abstaining all the while from intercourse with any other woman except his own married wife, attains to the merit of the Agnishtoma sacrifice.
त्रीणि वर्षाणि यः प्राशेत् सततं त्वेकभोजनम्॥ धर्मपत्नीरतो नित्यमग्निष्टोमफलं लभेत्।