He said, may Allah be pleased with him, with regard to the saying of Allāh Most High,

كُلُّ شَيْءٍ هَالِكٌ إِلَّا وَجْهَهُ
Everything will be destroyed except His Wajh

Indeed, everything thing has two wajhs (faces). A wajh toward the Haq and a wajh toward the khalq. The khalqī wajh perishes even to the essence (‘ayn literal: eye) of it’s existence. The haqqī wajh remains. Destruction will never befall upon it.