Valmiki Ramayana Ayodhya Kanda Sarga 75 Shloka 20
Original Shlokaआर्ये कस्मादजानन्तं गर्हसे मामकिल्बिषम्। विपुलां च मम प्रीतिं स्थिरां जानासि राघवे।।2.75.20।।
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आर्ये O noble lady, आजानन्तम् unaware, अकिल्बिषम् guiltless, माम् me, कस्मात् for what reason, गर्हसे upbraiding, राघवे in Rama, मम my, विपुलाम् profound, स्थिराम् steadfast, प्रीतिम् affection, जानासि you know.
O noble lady unaware (of what had happened), I am guiltless. Why do you upbraid me? You know well my profound, steadfast affection for Raghava (Rama).