The word(s) "immortal" appears 3 time(s) in 3 verse(s) in Quran in Saheeh International translation.

(1) But Satan whispered to them to make apparent to them that which was concealed from them of their private parts. He said, "Your Lord did not forbid you this tree except that you become angels or become of the immortal."

(سورة الأعراف, Al-A'raaf, Chapter #7, Verse #20)
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(2) And We did not make the prophets forms not eating food, nor were they immortal [on earth].

(سورة الأنبياء, Al-Anbiyaa, Chapter #21, Verse #8)
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(3) He thinks that his wealth will make him immortal.

(سورة الهمزة, Al-Humaza, Chapter #104, Verse #3)
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