But Satan whispered evil to him: he said, “O Adam! shall I lead thee to the Tree of Eternity and to a kingdom that never decays?”
According to Muhammad Asad regarding “the tree”:
“This symbolic tree is designated in the Bible as “the tree of life” and “the tree of knowledge of good and evil” (Genesis ii, 9), while in the above Qur’anic account Satan speaks of it as “the tree of life eternal (al-khuld)”. Seeing that Adam and Eve did not achieve immortality despite their tasting the forbidden fruit, it is obvious that Satan’s suggestion was, as it always is, deceptive. On the other hand, the Qur’an tells us nothing about the real nature of that “tree” beyond pointing out that it was Satan who described
it – falsely – as “the tree of immortality”: and so we may assume that the forbidden tree is simply an allegory of the limits which the Creator has set to man’s desires and actions: limits beyond which he may not go without offending against his own, God-willed nature” (The Message of the Quran pg. 619-620)
For a further understanding of the concept of “tree” in the Quran, see the following post:
Allah knows best.
Asad, Muhammad (1980). (pg. 618). The Message of the Quran. http://www.islamicweblibrary.com/wp-content/uploads/2020/04/55877864-54484011-Message-of-Quran-Muhammad-Asad-Islam-Translation.pdf