"A Bedouin came to the Messenger of Allah ﷺ and said: 'How shall I know that you are a Prophet?' He said: 'If I were to call this date cluster from this palm tree, would you bear witness that I am the Messenger of Allah?' So the Messenger of Allah ﷺ called it and they started to fall from the tree, until they fell towards the Prophet ﷺ, then he said: 'Go back,' and it went back. So the Bedouin accepted Islam."
جَاءَ أَعْرَابِيٌّ إِلَى رَسُولِ اللَّهِ ﷺ فَقَالَ بِمَ أَعْرِفُ أَنَّكَ نَبِيٌّ قَالَ إِنْ دَعَوْتُ هَذَا الْعِذْقَ مِنْ هَذِهِ النَّخْلَةِ أَتَشْهَدُ أَنِّي رَسُولُ اللَّهِ فَدَعَاهُ رَسُولُ اللَّهِ ﷺ فَجَعَلَ يَنْزِلُ مِنَ النَّخْلَةِ حَتَّى سَقَطَ إِلَى النَّبِيِّ ﷺ ثُمَّ قَالَ ارْجِعْ فَعَادَ فَأَسْلَمَ الأَعْرَابِيُّ