كتاب الزكاة
12  
The Book of Zakat
(44)
Chapter: Giving to those whose hearts have been inclined (towards Islam) and to those for whose faith there is fear if they are not given anything, and putting up with the one who asks rudely due to ignorance, and the Khawarij and rulings regarding them
(44)
باب إِعْطَاءِ مَنْ سَأَلَ بِفُحْشٍ وَغِلْظَةٍ ‏
Sahih Muslim 1056

Umar b. Khattab (Allah be pleased with him) reported that the Messenger of Allah (ﷺ) distributed something. Upon this I said:

Messenger of Allah, I swear by God, the others besides them were more deserving than these (to whom you gave charity). He said: They had in fact left no other alternative for me. but (that they should) either beg importunately from me or they would regard me as a miser, but I am not a miser.
حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، وَزُهَيْرُ بْنُ حَرْبٍ، وَإِسْحَاقُ بْنُ إِبْرَاهِيمَ الْحَنْظَلِيُّ، قَالَ إِسْحَاقُ أَخْبَرَنَا وَقَالَ الآخَرَانِ، حَدَّثَنَا جَرِيرٌ، عَنِ الأَعْمَشِ، عَنْ أَبِي وَائِلٍ، عَنْ سَلْمَانَ، بْنِ رَبِيعَةَ قَالَ قَالَ عُمَرُ بْنُ الْخَطَّابِ رضى الله عنه قَسَمَ رَسُولُ اللَّهِ صلى الله عليه وسلم قَسْمًا فَقُلْتُ وَاللَّهِ يَا رَسُولَ اللَّهِ لَغَيْرُ هَؤُلاَءِ كَانَ أَحَقَّ بِهِ مِنْهُمْ ‏.‏ قَالَ ‏ "‏ إِنَّهُمْ خَيَّرُونِي أَنْ يَسْأَلُونِي بِالْفُحْشِ أَوْ يُبَخِّلُونِي فَلَسْتُ بِبَاخِلٍ ‏"‏ ‏.‏
Reference : Sahih Muslim 1056
In-book reference : Book 12, Hadith 165
USC-MSA web (English) reference : Book 5, Hadith 2295
  (deprecated numbering scheme)