That the Messenger of Allah ﷺ implemented the penalty by beating forty times, with two shoes - Mis'ar (one of the narrators) said: "It think it was for wine."
أَنَّ رَسُولَ اللَّهِ ﷺ ضَرَبَ الْحَدَّ بِنَعْلَيْنِ أَرْبَعِينَ قَالَ مِسْعَرٌ أَظُنُّهُ فِي الْخَمْرِ قَالَ وَفِي الْبَابِ عَنْ عَلِيٍّ وَعَبْدِ الرَّحْمَنِ بْنِ أَزْهَرَ وَأَبِي هُرَيْرَةَ وَالسَّائِبِ وَابْنِ عَبَّاسٍ وَعُقْبَةَ بْنِ الْحَارِثِ