O Pritha, the self created Manu has said that men, failing to obtain son of their own, might raise up excellent virtue giving sons by others.
अपत्यं धर्मफलदं श्रेष्ठं विन्दन्ति मानवाः। आत्मशुक्रादपि पृथे मनुः स्वायम्भुवोऽब्रवीत्॥