For following the fourth mode of life the Brahmacharya, conversant with the distinctions of duty and shorn of malice, should live with the preceptor or his preceptor's son.
आयुषस्तु चतुर्भागं ब्रह्मचार्यनसूयकः। गुरौ वा गुरुपुत्रे वा वसेद् धर्मार्थकोविदः॥