Sayyidah Aishah (may Allah be pleased with her) said: On the day of Uhud the polytheists were defeated, and Iblis cried out: "O servants of Allah, look behind you!" The Muslims did not understand, and they turned back and began striking one another. Sayyiduna Hudhayfah bin al-Yaman (may Allah be pleased with him) saw his father and began to cry out: "My father! My father!" But by Allah, they did not stop until they had killed him. Sayyiduna Hudhayfah (may Allah be pleased with him) said: "May Allah forgive you." Urwah (may Allah have mercy on him) said: Some good always remained in Sayyiduna Hudhayfah (may Allah be pleased with him) until he met Allah Almighty.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب القسامة / 16476