Valmiki Ramayana Yuddha Kanda Sarga 88 Shloka 15
Original Shlokaअन्तर्धानगतेनाजौयस्त्वयाचरितस्तदा ।।6.88.15।। तस्कराचरितोमार्गःनैषवीरनिषेवितः ।
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तदा then, आजौ in the battle, अन्तर्धानगतेन remaining invisible, त्वया by you, यः that which, चरितः moving, मार्गः path, तस्कराचरितः is a cheat's move, एषः in that way, वीरनिषेवितः not chosen by warriors, न not
"Remaining invisible and moving in the battle then is the path of a thief which is not chosen by warriors."