"Everything will be destroyed except His Face"—meaning: except Him.
Muhammad said: "His Face" is in the accusative case (mansub) as an exception, the meaning being: except Him; and this is the school of thought of Yahya. "To Him belongs the command"—the judgment—"and to Him you will be returned."
﴿كُلُّ شَيْءٍ هَالِكٌ إِلا وَجْهَهُ﴾ يَعْنِي: إِلَّا هُوَ.
قَالَ مُحَمَّدٌ: ﴿وَجهه﴾ مَنْصُوبٌ عَلَى الِاسْتِثْنَاءِ، الْمَعْنَى: إِلَّا إِيَّاهُ؛ وَهُوَ مَذْهَبُ يَحْيَى. ﴿لَهُ الحكم﴾ الْقَضَاء ﴿وَإِلَيْهِ ترجعون﴾.