It is narrated from Imam Ibn Sirin (may Allah have mercy on him): "The two sons of Afra' (Sayyiduna Mu'adh and Sayyiduna Mu'awwidh, may Allah be pleased with them both) struck him (that is, Abu Jahl), and then Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) killed him and finished him off."
The chain of this hadith is sahih (authentic); Imam Bukhari narrated it in his Sahih (3962) and Imam Ahmad bin Hanbal in his Musnad (20412).
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب السيرة والمغازي / 4258
Hadith Gradingمحدثین:إسناده ضعيف، مرسل
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :مرسل، إسناده ضعيف. » «انفرد به المصنف من هذا الطريق»