Ramayana
परस्परममित्रघ्नौ च्छिद्रान्वेषणतत्परौ । ततोऽवर्धत वाली तु बलवीर्यसमन्वितः ॥ ४-१६-२६
Each of them seeking the weak points of the other and striking at the enemy. In a short while Vali, endowed with great strength, gained the upper hand and . - ॥ 4-16-26॥
english translation
parasparamamitraghnau cchidrAnveSaNatatparau । tato'vardhata vAlI tu balavIryasamanvitaH ॥ 4-16-26
hk transliteration by Sanscript