Valmiki Ramayana Aranya Kanda Sarga 42 Shloka 3
Original Shlokaन हि रामं पराक्रम्य जीवन्प्रतिनिवर्तते। वर्तते प्रतिरूपोऽसौ यमदण्डहतस्य ते।।3.42.3।।
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रामम् Rama, पराक्रम्य after exhibiting bravery, जीवन् with life, न प्रतिनिवर्तते हि will not return, यमदण्डहतस्य hit by Yama's staff, असौ he, प्रतिरूपः another form, ते to you, वर्तते is being.
No one who exhibits his heroism before Rama will come back alive. To you, already hit by Yama's staff, he is another form of the same Yama.