[Machine] The Prophet ﷺ used to send Furwah ibn Amr to inspect the date palms. When he entered the garden, he would estimate the yield of the fruits present and then hit some of them against others based on his judgement without making any mistakes.
«أَنَّ النَّبِيَّ ﷺ كَانَ يَبْعَثُ فَرْوَةَ بْنَ عَمْرٍو يَخْرُصُ النَّخْلَ فَإِذَا دَخَلَ الْحَائِطَ حَسَبَ مَا فِيهِ مِنَ الأَفْنَاءِ ثُمَّ ضَرَبَ بَعْضَهَا عَلَى بَعْضٍ عَلَى مَا يَرَى فِيهَا وَلَا يُخْطِيءُ»