कथं नु पुत्राः पितरं हन्युः कस्यां चिदापदि | भ्राता वा भ्रातरं हन्यात्सौमित्रे प्राणमात्मनः || २-९७-१६
Whatever be the calamity, Oh ! Lakshmana, how will sons slay their father, or a brother kill his own brother who is as dear to him as his own life? [2-97-16]