Sunan Abi Dawud, Book 41, Hadith 5100 (USC-MSA) ⓘ
Narrated Wathilah ibn al-Asqa': I asked: Messenger of Allah! what is party spirit? He replied: That you should help your people in wrongdoing.
حَدَّثَنَا مَحْمُودُ بْنُ خَالِدٍ الدِّمَشْقِيُّ، حَدَّثَنَا الْفِرْيَابِيُّ، حَدَّثَنَا سَلَمَةُ بْنُ بِشْرٍ الدِّمَشْقِيُّ، عَنْ بِنْتِ وَاثِلَةَ بْنِ الأَسْقَعِ، أَنَّهَا سَمِعَتْ أَبَاهَا، يَقُولُ قُلْتُ يَا رَسُولَ اللَّهِ مَا الْعَصَبِيَّةُ قَالَ " أَنْ تُعِينَ قَوْمَكَ عَلَى الظُّلْمِ " .
also referenced under: Hadith 5119 (DarusSalam) & Hadith 5100 (Hasan)