Valmiki Ramayana Yuddha Kanda Sarga 61 Shloka 36
Original Shlokaशैलशृङ्गाणिवृक्षांश्चशिलाश्चाप्युपसंहर । तिष्ठन्तुसायुधास्सर्वेसायुधाश्शैलपाणयः ।।6.61.36।।
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शैलशृङ्गाणि mountain tops, वृक्षांश्च trees also, शिलाश्चापि rocks too, उपसंहार be ready, सर्वे all, सायुधाः armed with weapons, शैलपाणयः rocks in hand, तिष्ठन्तु stay.
"Be ready staying on mountain tops, trees, rocks armed with weapons and rocks in hand."