Sayyiduna Jundub bin Sufyan (may Allah be pleased with him) narrates: I was present with the Messenger of Allah (peace and blessings be upon him) when a messenger came to him (peace and blessings be upon him) from a detachment that he (peace and blessings be upon him) had sent out (for jihad). He informed him (peace and blessings be upon him) of the help of Allah that He had granted to that detachment, and gave him the good news of the victory that Allah had decreed for them. He said: "O Messenger of Allah! While we were pursuing the enemy, and Allah had already defeated them, I went after a man with a sword. When he sensed that the sword was about to fall on him, he turned towards me while running and said: 'I am a Muslim, I am a Muslim,' but I killed him, because, O Prophet of Allah, he was only seeking refuge (to escape death)." The Messenger of Allah (peace and blessings be upon him) said: "Why did you not split open his heart and look, so that you would have known whether he was truthful or lying (in his claim)?" He said: "Even if I had split open his heart, what would the heart have told me? Is the heart anything other than a lump of flesh?" He (peace and blessings be upon him) said: "You killed him; you neither knew the state of his heart nor believed what his tongue said." The man said: "O Messenger of Allah! Pray for forgiveness for me." He (peace and blessings be upon him) said: "I will never pray for forgiveness for you." Then people buried him, and he came out above the ground three times. When his people saw this, they felt deeply ashamed and disgraced by what had happened to him, so they carried him and threw him into one of the mountain valleys.
Hadith Referenceمسند أبي يعلى الموصلي / مسند جندب بن عبد الله البجلي / 1522
Hadith Gradingمحدثین:إسناده حسن
Hadith Takhrij«حکم الحدیث مسند ابی یعلی محققاً تنسیق حسين سليم أسد - مکتبہ شاملہ :قال حسين سليم أسد: إسناده حسن . » «قال سعيد بن محمد السناري: صحيح: دون قوله: (لو شققتُ عن قلبه … إلخ)» «أخرجه الطبراني في "الكبير" [2/ رقم 1733]، والمؤلف في "المفاريد" [رقم 34]، وابن أبى شيبة في "مسنده" كما في "إتحاف الخيرة" [1/ 8/ عقب رقم 31]، والرويانى في "مسنده" [2/ رقم 952]، وابن العديم في "بغية الطلب" [3/ 113]، وغيرهم، مسند ابویعلیٰ ترقیم الاثری: 1519»