[Machine] And the Quraysh said, "We are superior." So a man from the Ansar (helpers) took a jawbone of a camel and struck Saad's (a person's name) nose, causing it to bleed. Saad's nose was broken. Then the verse of alcohol and gambling was revealed "Indeed, intoxicants, gambling, [sacrificing on] stone alters [to other than Allah], and divining arrows are but defilement from the work of Satan, so avoid it." [Quran 5:90] until His saying "So, then, will you desist?" [Quran 5:91]  

وَقَالَتْ قُرَيْشٌ نَحْنُ أَفْضَلُ فَأَخَذَ رَجُلٌ مِنَ الْأَنْصَارِ لَحْىَ جَزُورٍ فَضَرَبَ بِهِ أَنْفَ سَعْدٍ فَفَزَرَهُ وَكَانَ أَنْفُ سَعْدٍ مَفْزُورًا فَنَزَلَتْ آيَةُ الْخَمْرِ {إِنَّمَا الْخَمْرُ وَالْمَيْسِرُ وَالْأَنْصَابُ وَالْأَزْلَامُ رِجْسٌ مِنْ عَمَلِ الشَّيْطَانِ فَاجْتَنِبُوهُ} [المائدة 90] إِلَى قَوْلِهِ {فَهَلْ أَنْتُمْ مُنْتَهُونَ} [المائدة 91]