وَقَالُوا لَنْ نُؤْمِنَ لَكَ حَتَّىٰ تَفْجُرَ لَنَا مِنَ الْأَرْضِ يَنْبُوعًا

Surah Al-Isra : 90
And they say, "We will not believe you until you break open for us from the ground a spring.

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