The Idolators ask for a Miracle

Allah states that out of their disbelief and stubbornness, the idolators asked why is not a miracle sent down to the Messenger from his Lord, just like the earlier Messengers For instance, the disbelievers were being stubborn when they asked the Prophet to turn As-Safa into gold, to remove the mountains from around them, and to replace them with green fields and rivers. Allah said,

وَمَا مَنَعَنَآ أَن نُّرْسِلَ بِالاٌّيَـتِ إِلاَّ أَن كَذَّبَ بِهَا الاٌّوَّلُونَ

(that is, in order to raise an objection against the prophethood of Sayyidna Muhammad al-Mustafa ﷺ ، they say) 'Why has the specific miracle they demand has not been shown by him?' The answer is clear. The showing of a miracle is not within the control of a prophet or messenger. Instead, that is directly an act of God. It is He who elects to show a miracle, of whatever kind, at any time, and in His wisdom - all as deter-mined by Him alone. He is not restricted by or burdened with anyone's demand or desire. Therefore, it was said: إِنَّمَا أَنتَ مُنذِرٌ (You are but a warner), that is, the Holy Prophet ﷺ is there only to warn disbelievers against Divine punishment - showing miracles is not his mission.

Said in the last sentence of the verse was: وَلِكُلِّ قَوْمٍ هَادٍ ۔ It means that there have been guides for every people among past communities. You are not the lone prophet. The standard mission of all prophets was to guide their people, warn them of the punishment of Allah, but none of them were given the power and control to show miracles. It is Allah who shows miracles of His choice whenever He chooses to do so.