Quran 16:127 An-Nahl, ayah 127 of 128

وَٱصْبِرْ وَمَا صَبْرُكَ إِلَّا بِٱللَّهِ ۚ وَلَا تَحْزَنْ عَلَيْهِمْ وَلَا تَكُ فِى ضَيْقٍ مِّمَّا يَمْكُرُونَ ۝١٢٧

16:127 Endure thou patiently (O Muhammad). Thine endurance is only by (the help of) Allah. Grieve not for them, and be not in distress because of that which they devise.