Hadithcore
Sahih Muslim, 2544
sahih

Abu Barza reported that Allah's Messenger (ﷺ) sent a person to a tribe amongst the tribes of Arabia. They reviled him and beat him. He came to Allah's Messenger (ﷺ) and narrated to him (the story of atrocities perpetrated upon him by the people of the tribe). Thereupon he (the Prophet) said:

If you were to come to the people of 'Uman, they would have neither reviled you nor beaten you.

حَدَّثَنَا سَعِيدُ بْنُ مَنْصُورٍ، حَدَّثَنَا مَهْدِيُّ بْنُ مَيْمُونٍ، عَنْ أَبِي الْوَازِعِ، جَابِرِ بْنِ عَمْرٍو الرَّاسِبِيِّ سَمِعْتُ أَبَا بَرْزَةَ، يَقُولُ بَعَثَ رَسُولُ اللَّهِ صلى الله عليه وسلم رَجُلاً إِلَى حَىٍّ مِنْ أَحْيَاءِ الْعَرَبِ فَسَبُّوهُ وَضَرَبُوهُ فَجَاءَ إِلَى رَسُولِ اللَّهِ صلى الله عليه وسلم فَأَخْبَرَهُ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏

‏ لَوْ أَنَّ أَهْلَ عُمَانَ أَتَيْتَ مَا سَبُّوكَ وَلاَ ضَرَبُوكَ ‏

‏ ‏.‏

References2 variants
In-Book Reference
Book 44, Hadith 324
USC-MSA web (English) reference
Book 31, Hadith 6175 (deprecated numbering scheme)