Surah Al-Baqarah (The Cow), Verse 249

فَلَمَّا فَصَلَ طَالُوْتُ بِالْجُنُوْدِ قَالَ اِنَّ اللّٰهَ مُبْتَلِیْكُمْ بِنَهَرٍ فَمَنْ شَرِبَ مِنْهُ فَلَیْسَ مِنِّیْ وَمَنْ لَّمْ یَطْعَمْهُ فَاِنَّهٗ مِنِّیْۤ اِلَّا مَنِ اغْتَرَفَ غُرْفَةً بِیَدِهٖ فَشَرِبُوْا مِنْهُ اِلَّا قَلِیْلًا مِّنْهُمْ فَلَمَّا جَاوَزَهٗ هُوَ وَالَّذِیْنَ اٰمَنُوْا مَعَهٗ قَالُوْا لَا طَاقَةَ لَنَا الْیَوْمَ بِجَالُوْتَ وَجُنُوْدِهٖ قَالَ الَّذِیْنَ یَظُنُّوْنَ اَنَّهُمْ مُّلٰقُوا اللّٰهِ كَمْ مِّنْ فِئَةٍ قَلِیْلَةٍ غَلَبَتْ فِئَةً كَثِیْرَةً بِاِذْنِ اللّٰهِ وَاللّٰهُ مَعَ الصّٰبِرِیْنَ ۟

Falammaa fasala Taalootu biljunoodi qaala innal laaha mubtaleekum binaharin faman shariba minhu falaisa minnee wa mallam yat'amhu fa innahoo minneee illaa manigh tarafa ghurfatam biyadih; fashariboo minhu illaa qaleelamminhum; falammaa jaawazahoo huwa wallazeena aamanoo ma'ahoo qaaloo laa taaqata lanal yawma bi Jaaloota wa junoodih; qaalallazeena yazunnoona annahum mulaaqul laahi kam min fi'atin qaleelatin ghalabat fi'atan kaseeratam bi iznil laah; wallaahuma'as saabireen

“When Talut set forth with the armies, he said: "Allah will test you at the stream: if any drinks of its water, He goes not with my army: Only those who taste not of it go with me: A mere sip out of the hand is excused." but they all drank of it, except a few. When they crossed the river,- He and the faithful ones with him,- they said: "This day We cannot cope with Goliath and his forces." but those who were convinced that they must meet Allah, said: "How oft, by Allah's will, Hath a small force vanquished a big one? Allah is with those who steadfastly persevere."”

Quran 2:249 (Yusuf Ali Translation)