And this is a Book (the Quran) which We have sent down, blessed and confirming what was before it, that you may warn the Mother of Cities and those around it. Those who believe in the Hereafter believe in it (the Quran), and they are maintaining their prayers.
Meaning:-
Mother of Cities: “The Mother of Cities” is an honorary title given to the city of Mecca because of its great religious significance as the home of Allah’s first house of worship ever built on earth, and perhaps because of its central location as well.