Valmiki Ramayana Sundara Kanda Sarga 59 Shloka 21
Original Shlokaएतावेव हि सङ्कृद्धौ सवाजिरथकुञ्जराम्। लङ्कां नाशयितुं शक्तौ सर्वे तिष्ठन्तु वानराः।।5.59.21।।
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सङ्कृद्धौ if they become angry, एतावेव these two, सवाजिरथकुञ्जराम् the cavalry, chariots and elephants, लङ्काम् Lanka also, नाशयितुम् to destroy, शक्तौ have the power, सर्वे all, वानराः vanaras, तिष्ठन्तु even if they stay away.
"If these two become angry they have the power to destroy Lanka, the cavalry, chariots and also the elephants even if the vanaras stay away.