"And exalt Him morning and afternoon" (Al-Ahzab: 42). The interpretation of Ibn Abbas: This refers to the prescribed prayer.
﴿وسبحوه بكرَة وَأَصِيلا﴾ تَفْسِيرُ ابْنُ عَبَّاسٍ: هَذَا فِي الصَّلَاة الْمَكْتُوبَة