Ramayana
तपोवनानि पुण्यानि द्रष्टुमिच्छामि राघव । गङ्गातीरोपविष्टानामृषीणामुग्रतेजसाम् ॥ 7-42-33 ॥
and to dwell at the feet of the sages of fierce austerity who are seated upon the bank of the Ganga, living on fruits and roots, O lord.'
english translation