Valmiki Ramayana Kishkindha Kanda Sarga 34 Shloka 1
Original Shlokaतमप्रतिहतं क्रुद्धं प्रविष्टं पुरुषर्षभम्। सुग्रीवो लक्ष्मणं दृष्ट्वा बभूव व्यथितेन्द्रियः।।4.34.1।।
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सुग्रीवः Sugriva, अप्रतिहतम् who could not be obstructed, प्रविष्टम् entered, क्रुद्धम् angry one, पुरुषर्षभम् a bull among men, तं him, लक्ष्मणम् Lakshmana, दृष्ट्वा seeing, व्यथितेन्द्रियः senses depressed, बभूव became.
On seeing the angry Lakshmana, a bull among men, who could not be obstructed, enter in, Sugriva was disturbed. Lakshmana meets Sugriva -- reminds him of his promise to Rama.