Valmiki Ramayana Yuddha Kanda Sarga 12 Shloka 10
Original Shlokaअहंतुखलुसर्वान्वस्समर्थयितुमुद्यतः । कुम्भकर्णस्यतुस्वप्नान्नेममर्थमचोदयम् ।।6.12.10।।
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अहम् I, वः earlier, सर्वान् all, खलु: indeed, समर्थयितुम् right, उद्यतः told you, कुम्भकर्णस्यतु: to Kumbhakarna, स्वप्नात् was sleeping, मम् I, इमम् this, अर्थं: matter, नअचोदयम् not informed.
"Indeed, rightly I told all of you earlier. Since Kumbhakarna was sleeping I had not informed him about this matter."