Valmiki Ramayana Ayodhya Kanda Sarga 63 Shloka 44
Original Shlokaन नूनं तपसो वास्ति फलयोगश्श्रुतस्य वा। पिता यन्मां न जानाति शयानं पतितं भुवि।।2.63.44।।
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नूनम् surely, तपसो वा either for asceticism, श्रुतस्य वा or for scriptural knowledge, फलयोगः attainment of fruit, नास्ति not there, यत् since, पिता my father, भुवि on this earth, पतितम् fallen, शयानम् lying, माम् me, न जानाति not know.
'My father does not know that I am lying on the ground. It is true that there is no reward either for asceticism or for scriptural knowledge.