Hadith 6:1067
Hafs ibn Ghiyath narrated to us, from Asim, who said: I said to al-Hasan, "I have a neighbor from the Khawarij who has died; should I attend his funeral?" He said, "Did he revolt against the Muslims?" I said, "No." He said, "Then attend his funeral, for action is more reliable than opinion."
حدثنا حفص بن غياث عن عاصم قال قلت للحسن ان لي جارا من الخوارج مات أشهد جنازته قال أخرج على المسلمين قال قلت لا قال فاشهد جنازته فإن العمل أملك به من الرأي