Valmiki Ramayana Ayodhya Kanda Sarga 37 Shloka 7
Original Shlokaस चीरे पुरुषव्याघ्रः कैकेय्या प्रतिगृह्य ते। सूक्ष्मवस्त्रमवक्षिप्य मुनिवस्त्राण्यवस्त ह।।2.37.7।।
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पुरुषव्याघ्रः tiger (best) among men, सः he, कैकेय्याः from Kaikeyi, ते those, चीरे bark robes, प्रतिगृह्य having received, सूक्ष्मवस्त्रम् fine apparel, अपक्षिप्य after removing, मुनिवस्त्राणि ascetic robes, अवस्त ह put on
The tiger among men (Rama) received the bark robes from Kaikeyi and putting off the fine apparel wore the robes of an ascetic.