Valmiki Ramayana Yuddha Kanda Sarga 67 Shloka 143
Original Shlokaतंदृष्टवाराक्षसश्रेष्ठंप्रदीप्तानलवर्चसम् । विस्फारयामासतदाकार्मुकंपुरुषर्षभः ।।6.67.143।।
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पुरुषर्षभः bull among men, प्रदीप्तानलतेजसम् shining like fire, तम् him, राक्षसश्रेष्ठम् foremost of Rakshasas, दृष्टवा seeing, तदा then, कार्मुकम् bow. विस्फारयामास stretched.
Seeing the foremost of Rakshasas, shining like fire, Rama, the bull among men stretched his bow.