Dhritarashtra said Speak about asceticism stained by fruits; I have heard all about that unstained by faults, by which, O Sanat-Sujata, I have come to know of an ancient mystery.
धृतराष्ट्र उवाच कल्मषं तपसो ब्रूहि श्रुतं निष्कल्मषं तपः। सनत्सुजात येनेदं विद्यां गुह्यं सनातनम्॥