2:249
فَ لَمَّا فَصَلَ طَالُوتُ بِ ٱلْ جُنُودِ قَالَ إِنَّ ٱللَّهَ مُبْتَلِي كُم بِ نَهَرٍ فَ مَن شَرِبَ مِنْ هُ فَ لَيْسَ مِنِّ ى وَ مَن لَّمْ يَطْعَمْ هُ فَ إِنَّ هُۥ مِنِّ ىٓ إِلَّا مَنِ ٱغْتَرَفَ غُرْفَةًۢ بِ يَدِ هِۦ فَ شَرِبُ وا۟ مِنْ هُ إِلَّا قَلِيلًا مِّنْ هُمْ فَ لَمَّا جَاوَزَ هُۥ هُوَ وَ ٱلَّذِينَ ءَامَنُ وا۟ مَعَ هُۥ قَالُ وا۟ لَا طَاقَةَ لَ نَا ٱلْ يَوْمَ بِ جَالُوتَ وَ جُنُودِ هِۦ قَالَ ٱلَّذِينَ يَظُنُّ ونَ أَنَّ هُم مُّلَٰقُوا۟ ٱللَّهِ كَم مِّن فِئَةٍ قَلِيلَةٍ غَلَبَتْ فِئَةً كَثِيرَةًۢ بِ إِذْنِ ٱللَّهِ وَ ٱللَّهُ مَعَ ٱل صَّٰبِرِينَ
And when Saul went forth with the soldiers, he said, "Indeed, Allah will be testing you with a river. So whoever drinks from it is not of me, and whoever does not taste it is indeed of me, excepting one who takes [from it] in the hollow of his hand." But they drank from it, except a [very] few of them. Then when he had crossed it along with those who believed with him, they said, "There is no power for us today against Goliath and his soldiers." But those who were certain that they would meet Allah said, "How many a small company has overcome a large company by permission of Allah. And Allah is with the patient."