Valmiki Ramayana Ayodhya Kanda Sarga 45 Shloka 32

एवम् in this way, निवर्तने seeking his return, तेषां द्विजातीनाम् those brahmins, विक्रोशताम् crying, तत्र there, तमसा Tamasa river, राघवम् Rama, वारयन्तीव as if preventing, ददृशे appeared.

While those brahmins were thus crying out, river Tamasa came into view as if seeking Rama to turn back to Ayodhya.