Surat Al-'Aĥqāf - سورة الأحقاف

إِنَّ الَّذِينَ قَالُوا رَبُّنَا اللَّهُ ثُمَّ اسْتَقَامُوا فَلَا خَوْفٌ عَلَيْهِمْ وَلَا هُمْ يَحْزَنُونَ

Muhsin Khan: Verily, those who say: "Our Lord is (only) Allah," and thereafter Istaqamu (i.e. stood firm and straight on the Islamic Faith of Monotheism by abstaining from all kinds of sins and evil deeds which Allah has forbidden and by performing all kinds of good deeds which He has ordained), on them shall be no fear, nor shall they grieve.