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yah prsto munibhih praha
dharman nana-vidhañ chubhan
nrnam varnasramanam ca
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
In reply to questions asked by certain sages, he [Svayambhuva Manu], out of compassion for all living entities, taught the diverse sacred duties of men in general and the different varnas and asramas.