17:77
سُنَّةَ مَن قَدْ أَرْسَلْنَا قَبْلَكَ مِن رُّسُلِنَا ۖ وَلَا تَجِدُ لِسُنَّتِنَا تَحْوِيلًا
sunnata man qad arsalnā qablaka min rusulinā walā tajidu lisunnatinā taḥwīlan
Such was Our way with the messengers We sent before you, and you will find no change in Our ways.
(This was Our) Sunnah (rule or way) with the Messengers We sent before you (O Muhammad صلى الله عليه و سلم), and you will not find any alteration in Our Sunnah (rule or way).