"And among you is he who is returned to the most abject of life, so that he may not know, after [having had] knowledge, a thing." He says: He becomes like the child who does not understand anything.
﴿وَمِنْكُمْ مَنْ يُرَدُّ إِلَى أَرْذَلِ الْعُمر لكيلا يعلم بعد علم شَيْئا﴾ يَقُولُ: يَصِيرُ بِمَنْزِلَةِ الطِّفْلِ الَّذِي لَا يعقل شَيْئا.