Valmiki Ramayana Kishkindha Kanda Sarga 66 Shloka 22
Original Shlokaशतानि त्रीणि गत्वाऽथ योजनानां महाकपे। तेजसा तस्य निर्धूतो न विषादं ततोगतः।।4.66.22।।
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महाकपे O great monkey, अथ then, योजनानाम् of yojanas, त्रीणि three, शतानि गत्वा after covering a distance of three hundred, तस्य his, तेजसा in brilliance, निर्धूतः you were pushed back, ततः then, विषादम् dull, न not, गतः attained.
'O great monkey you went three hundred yojanas and were pushed back by the Sun's radiance. Yet it did not leave you depressed.