Al-Fajr • EN-TAFSIR-AL-TUSTARI
﴿ وَلَيَالٍ عَشْرٍۢ ﴾
“and the ten nights!”
and by the ten nights,His words:[In its outer meaning] it refers to the [first] ten nights of Dhū al-Ḥijja, which are the Well-known Days.