Valmiki Ramayana Ayodhya Kanda Sarga 75 Shloka 27

आर्यः esteemed one, यस्य whose, अनुमते with sanction, गतः exiled, हस्त्यश्वरथसम्बाधे abundantly provided with elephants, horses and chariots, शस्त्रसमाकुले filled with weapons, युद्धे in a battle, सताम् virtuous men's, धर्मम् righteous, मा स्म कार्षीत् shall not do.

May the one who counselled the exile of my esteemed brother acquire the demerit in the same way as a person, who having gone to the battleground abundantly provided with elephants, horses, chariots and weapons fails to discharge the duty (of a fighter)