The Saheeh International Quran Translation
وَقَالُوا۟ لَن نُّؤْمِنَ لَكَ حَتَّىٰ تَفْجُرَ لَنَا مِنَ ٱلْأَرْضِ يَنۢبُوعًا
تجهيز للطباعة
And they say, "We will not believe you until you break open for us from the ground a spring.