Ramayana
स गत्वा सरयूतीरमुपस्पृश्य कृताञ्जलिः । निगृह्य सर्वस्रोतांसि निःश्वासं न मुमोच ह ॥ 7-106-15 ॥
Having gone to the bank of the Sarayu and touched its water with folded hands, restraining all the channels of his senses, he did not let go his breath.
english translation