Valmiki Ramayana Bala Kanda Sarga 64 Shloka 10
Original Shlokaअथ तस्य च शब्देन गीतेनाप्रतिमेन च। दर्शनेन च रम्भाया मुनिस्सन्देहमागत:।।1.64.10।।
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अथ afterwards, तस्य that cuckoo's, शब्देन sounds, अप्रतिमेन incomparable, गीतेन song, रम्भाया: with the Rambha's, दर्शनेन च presence also, मुनि: the ascetic, सन्देहम् doubt, आगत: arose.
On hearing the sound of the incomparable song of the cuckoo along with the sight of Rambha, a doubt arose in the mind of the ascetic.