Valmiki Ramayana Aranya Kanda Sarga 64 Shloka 34

लक्ष्मण Lakshmana, आर्याम् noble, चन्द्रनिभाननाम् Moonlike face, सीताम् Sita, मे to me, नाख्याति not tell, अद्य right now, इमाम् this, सरितं वा to the river too, शोषयिष्यामि will make it dry.

O Lakshmana if this river does not tell me about that noble Sita with countenance like the moon, I will drain it dry right now.