Valmiki Ramayana Sundara Kanda Sarga 37 Shloka 18
Original Shlokaश्रुत्वैव तु वचो मह्यं क्षिप्रमेष्यति राघवः। चमूं प्रकर्षन्महतीं हर्यृक्षगणसङ्कुलाम्।।5.37.18।।
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राघवः Rama, श्रुत्वैव तु after hearing this, वचः word, मह्यं by me, क्षिप्रम् soon, ऐष्यति he will reach, चमूं an army, प्रकर्षन् while leading, महतीं huge, हर्यृक्षगणसङ्कुलाम् with an army of vanaras and bears.
"On hearing me Rama will reach soon with a huge army of vanaras and bears.