Ramayana
ते यूयमवगाहध्वं नर्मदां शर्मदां शुभाम् । महापद्ममुखा मत्ता गङ्गामिव गहागजाः । अस्यां स्नात्वा महानद्यां पाप्मानं विप्रमोक्ष्यथ ॥ 7-31-32 ॥
So plunge into the Narmada, that auspicious bestower of bliss, as rutting elephants with great lotuses at their mouths plunge into the Ganga; bathing in this great river you shall wash away your sin.
english translation