Narrated Anas bin Malik:While I was walking with the Prophet (ﷺ) who was wearing a Najrani outer garment with a thick hem, a bedouin came upon the Prophet (ﷺ) and pulled his garment so violently that I could recognize the impress of the hem of the garment on his shoulder, caused by the violence of his pull. Then the bedouin said, "Order for me something from Allah's Fortune which you have." The Prophet (ﷺ) turned to him and smiled, and ordered that a gift be given to him.
حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ، حَدَّثَنَا مَالِكٌ، عَنْ إِسْحَاقَ بْنِ عَبْدِ اللَّهِ، عَنْ أَنَسِ بْنِ مَالِكٍ ـ رضى الله عنه قَالَ كُنْتُ أَمْشِي مَعَ النَّبِيِّ صلى الله عليه وسلم وَعَلَيْهِ بُرْدٌ نَجْرَانِيٌّ غَلِيظُ الْحَاشِيَةِ، فَأَدْرَكَهُ أَعْرَابِيٌّ فَجَذَبَهُ جَذْبَةً شَدِيدَةً، حَتَّى نَظَرْتُ إِلَى صَفْحَةِ عَاتِقِ النَّبِيِّ صلى الله عليه وسلم قَدْ أَثَّرَتْ بِهِ حَاشِيَةُ الرِّدَاءِ مِنْ شِدَّةِ جَذْبَتِهِ، ثُمَّ قَالَ مُرْ لِي مِنْ مَالِ اللَّهِ الَّذِي عِنْدَكَ. فَالْتَفَتَ إِلَيْهِ، فَضَحِكَ ثُمَّ أَمَرَ لَهُ بِعَطَاءٍ.
Bukhari
One-fifth of Booty to the Cause of Allah (Khumus) • Hadith 57