الفتح — Al-Fath Ayat 23
سُنَّةَ اللّٰهِ الَّتِيْ قَدْ خَلَتْ مِنْ قَبْلُ ۖوَلَنْ تَجِدَ لِسُنَّةِ اللّٰهِ تَبْدِيْلًا
Sunnatallāhil-latī qad khalat min qabl(u), wa lan tajida lisunnatillāhi tabdīlā(n).
"[This is] the established way of Allah which has occurred before. And never will you find in the way of Allah any change."