Al-Baqarah - 2:156

الَّذِينَ إِذَا أَصَابَتْهُم مُّصِيبَةٌ قَالُواْ إِنَّا لِلّهِ وَإِنَّـا إِلَيْهِ رَاجِعونَ
[2:156]
Who, when a misfortune befalls them, say: Surely we are Allah's and to Him we shall surely return.
Who say, when afflicted with calamity: "To Allah We belong, and to Him is our return":-
Who say, when a misfortune striketh them: Lo! we are Allah's and lo! unto Him we are returning.