7وَيَقولُ الَّذينَ كَفَروا لَولا أُنزِلَ عَلَيهِ آيَةٌ مِن رَبِّهِ ۗ إِنَّما أَنتَ مُنذِرٌ ۖ وَلِكُلِّ قَومٍ هادٍN. J. DawoodThe unbelievers ask: ‘Why has no sign been sent down to him by his Lord?’ But you are only to give warning. Every nation has its mentor.