Valmiki Ramayana Kishkindha Kanda Sarga 31 Shloka 38
Original Shlokaस निद्रामदसंवीतो वानरो न विबुद्धवान्। बभूव मदमत्तश्च मदनेन च मोहितः4.31.38।।
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निद्रामदसंवीतः overcome by drinks and sleep, वानरः monkey, न विबुद्धवान् he did not come to his senses, मदमत्तश्च intoxicated, मदनेन च overwhelmed by love, मोहितः deluded, बभूव appeared.
The monkey was too drowsy with drink, too intoxicated with passion to come back to his senses.