Valmiki Ramayana Kishkindha Kanda Sarga 16 Shloka 5
Original Shlokaन च कार्यो विषादस्ते राघवं प्रति मत्कृते। धर्मज्ञश्च कृतज्ञश्च कथं पापं करिष्यति4.16.5।।
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मत्कृते for me, राघवं प्रति with respect to Rama, ते to you, विषादः worry, न कार्यः no need, धर्मज्ञश्च for a knower of dharma, कृतज्ञश्च a grateful person, पापम् sin, कथम् how, करिष्यति will he do
'You need not be concerned about me on account of Rama. How can one who knows dharma and who has a sense of gratitude commit sin?