Sura Yā Sin 36:10

وَسَوَآءٌ عَلَيْهِمْ ءَأَنذَرْتَهُمْ أَمْ لَمْ تُنذِرْهُمْ لَا يُؤْمِنُونَ

wa-sawāun ʿalayhim a-andhartahum am lam tundhirhum lā yuʾminūna

The same is it to them whether thou admonish them or thou do not admonish them: they will not believe.

Sura al-Shūrā 42:7

وَكَذَٰلِكَ أَوْحَيْنَآ إِلَيْكَ قُرْءَانًا عَرَبِيًّا لِّتُنذِرَ أُمَّ ٱلْقُرَىٰ وَمَنْ حَوْلَهَا وَتُنذِرَ يَوْمَ ٱلْجَمْعِ لَا رَيْبَ فِيهِ فَرِيقٌ فِى ٱلْجَنَّةِ وَفَرِيقٌ فِى ٱلسَّعِيرِ

wa-ka-dhālika awḥaynā ilayka qurʾānan ʿarabiyyan li-tundhira umma l-qurā wa-man ḥawlahā wa-tundhira yawma l-jamʿi lā rayba fīhi farīqun fī l-jannati wa-farīqun fī l-saʿīri

Thus have We sent by inspiration to thee an Arabic Qur'an: that thou mayest warn the Mother of Cities and all around her,- and warn (them) of the Day of Assembly, of which there is no doubt: (when) some will be in the Garden, and some in the Blazing Fire.