Valmiki Ramayana Kishkindha Kanda Sarga 24 Shloka 9
Original Shlokaभ्राता कथं नाम महागुणस्य भ्रातुर्वधं राघव रोचयेत। राज्यस्य दुःखस्य च वीर सारं विचिन्तयन्कामपुरस्कृतऽस्सन्4.24.9।।
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राघव O Rama, वीर hero, कामपुरस्कृतऽस्सन् succumbed to passion, भ्राता brother, राज्यस्य kingdom's, दुःखस्य च of grief, सारम् essence, चिन्तयन् thinking, महागुणस्य of a virtuous, भ्रातुः brother's, वधम् killing, कथम् नाम how can, रोचयेत to accept.
'O Rama prompted by passion, without thinking of the difference between obtaining the kingdom to satisfy one's desire and the consequent grief, which brother would be willing to kill his virtuous elder brother?