سُنَّةَ مَن قَدْ أَرْسَلْنَا قَبْلَكَ مِن رُّسُلِنَا وَلاَ تَجِدُ لِسُنَّتِنَا تَحْوِيلاً
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سورة الإسراء
(17/77) This is also the Sunnah (Sunnetullah, rule of Allah) with regard to those of Our Messengers whom We sent before you. And you shall not find a change in Our Sunnah (rule).
Surah Al-Isra