﴿ وَقَالُوا۟ لَن نُّؤْمِنَ لَكَ حَتَّىٰ تَفْجُرَ لَنَا مِنَ ٱلْأَرْضِ يَنۢبُوعًا ﴾

“and so they say: "[O Muhammad,] we shall not believe thee till thou cause a spring to gush forth for us from the earth,”

(And they say) i.e. 'Abdullah Ibn Umayyah al-Makhzumi and his host: (We will not put faith in thee) we will not believe you (till thou cause a spring to gush forth from the earth for us) from the earth of Mecca for us;