Ramayana 2.63.53

न द्विजातिरहं राजन्मा भूत्ते मनसो व्यथा।शूद्रायामस्मि वैश्येन जातो जनपदाधिप।।2.63.53।।

na dvijātir ahaṃ rājan mā bhūt te manaso vyathā | śūdrāyām asmi vaiśyena jāto janapadādhipa || 2.63.53 ||

O king—lord of the realm—I am not of the twice-born. Let no anxiety trouble your mind. I was born to a Śūdra mother by a Vaiśya father.