Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
tabarani:1723 – [Chain 1] Muḥammad b. al-Faḍl al-Saqaṭī > Saʿīd b. Sulaymān [Chain 2] Abū Khalīfah > Abū al-Walīd al-Ṭayālisī > ʿAbd al-Ḥamīd b. Bahrām > Shahr b. Ḥawshab > Jundub b. Sufyān a man from Bajīlah

[Machine] "Indeed, I was with the Messenger of Allah ﷺ when a bearer of glad tidings came to him with news of the victory that Allah had given to his army and the opening that Allah had granted them. He said, 'O Messenger of Allah, while we were pursuing the enemy who had already been defeated by Allah the Most High, I came across a man with a sword. When he realized that his sword was useless and he was being pursued, he started saying, "I am a Muslim, I am a Muslim." So the man asked, 'Did you kill him?' He replied, 'O Messenger of Allah, I sought refuge.' The Prophet asked, 'Could you not have dissected his heart to know if he was telling the truth or lying?' The man said, 'Had I dissected his heart, I wouldn't have known whether his heart was just a piece of flesh or not.' The Prophet said, 'You believed him without knowing what was in his heart or what he spoke. You have done right.' The man then said, 'O Messenger of Allah, seek forgiveness for me.' The Prophet replied, 'I will not seek forgiveness for you.' The man died and they buried him, but he appeared on the surface of the earth. This happened three times, and when they saw this, they felt ashamed and afraid of what they had encountered. So they picked him up and threw him into one of those valleys among those valleys."  

الطبراني:١٧٢٣ – حَدَّثَنَا مُحَمَّدُ بْنُ الْفَضْلِ السَّقَطِيُّ حَدَّثَنَا سَعِيدُ بْنُ سُلَيْمَانَ ح وَحَدَّثَنَا أَبُو خَلِيفَةَ ثنا أَبُو الْوَلِيدِ الطَّيَالِسِيُّ عَنْ عَبْدِ الْحَمِيدِ بْنِ بَهْرَامَ ثنا شَهْرُ بْنُ حَوْشَبٍ قَالَ حَدَّثَنِي جُنْدُبُ بْنُ سُفْيَانَ رَجُلٌ مِنْ بَجِيلَةَ قَالَ

إِنِّي لَعِنْدَ رَسُولِ اللهِ ﷺ حِينَ جَاءَهُ بَشِيرٌ مِنْ سَرِيَّتِهِ فَأَخْبَرَهُ بِالنَّصْرِ الَّذِي نَصَرَ اللهُ سَرِيَّتَهُ وَبِفَتْحِ اللهِ الَّذِي فَتَحَ لَهُمْ وَقَالَ يَا رَسُولَ اللهِ بَيْنَمَا نَحْنُ نَطْلُبُ الْقَوْمَ وَقَدْ هَزَمَهُمُ اللهُ تَعَالَى إِذْ لَحِقْتُ رَجُلًا بِالسَّيْفِ فَلَمَّا حَسَّ أَنَّ السَّيْفَ مُوَاقِعُهُ وَهُوَ يَسْعَى وَيَقُولُ إِنِّي مُسْلِمٌ إِنِّي مُسْلِمٌ قَالَ «فَقَتَلْتَهُ؟» فَقَالَ يَا رَسُولَ اللهِ إِنَّمَا تَعَوَّذَ قَالَ «فَهَلَّا شَقَقْتَ عَنْ قَلْبِهِ فَنَظَرْتَ أَصَادِقٌ هُوَ أَمْ كَاذِبٌ؟» قَالَ لَوْ شَقَقْتُ عَنْ قَلْبِهِ مَا كَانَ عِلْمِي هَلْ قَلْبُهُ إِلَّا بَضْعَةٌ مِنْ لَحْمٍ؟ قَالَ «لَا مَا فِي قَلْبِهِ تَعْلَمُ وَلَا لِسَانِهِ صَدَّقْتَ» قَالَ يَا رَسُولَ اللهِ اسْتَغْفِرْ لِي قَالَ «لَا أَسْتَغْفِرُ لَكَ» قَالَ فَمَاتَ ذَلِكَ الرَّجُلُ فَدَفَنُوهُ فَأَصْبَحَ عَلَى وَجْهِ الْأَرْضِ ثُمَّ دَفَنُوهُ فَأَصْبَحَ عَلَى وَجْهِ الْأَرْضِ ثَلَاثَ مَرَّاتٍ فَلَمَّا رَأَوْا ذَلِكَ اسْتَحْيَوْا وَخَزَوْا مِمَّا لَقِيَ فَاحْتَمَلُوهُ فَأَلْقَوْهُ فِي شِعْبٍ مِنْ تِلْكَ الشِّعَابِ  

See similar narrations below:

Collected by Ṭabarānī
tabarani:15713 – Bishr b. Mūsá > Muḥammad b. Saʿīd al-Aṣbahānī > Ḥafṣ b. Ghiyāth > ʿĀṣim al-Aḥwal > al-Sumayṭ b. Sumayr > ʿImrān b. Ḥuṣayn

[Machine] The Messenger of Allah ﷺ sent an expedition. A man carried another man from among the polytheists. When he killed him with a spear, he said, "I am a Muslim." Then he went to the Prophet ﷺ and said, "I have sinned, so seek forgiveness for me." He said, "What is that?" He said, "I carried a man from among the polytheists, and when I attacked him with a spear, he said, 'I am a Muslim.' I thought he was seeking protection, so I killed him." He said, "Could you not have pierced his heart until it became clear to you?" He said, "Would you clarify it for me, O Messenger of Allah?" He said, "He spoke to you with his tongue, but you did not believe what he said in his heart." The man died, so we buried him, and in the morning he was on the earth. We commanded our boys to guard him, and in the morning he was on the earth. We said, "They were negligent, so we guarded him," but in the morning he was still on the ground. We went to the Prophet ﷺ and informed him, and he said, "Indeed, it is accepted from the one who is worse than him, but Allah wanted to teach you the sanctity of blood." Then he said, "Take him to the foot of this mountain and stone him." So we did.  

الطبراني:١٥٧١٣ – حَدَّثَنَا بِشْرُ بْنُ مُوسَى ثنا مُحَمَّدُ بْنُ سَعِيدٍ الْأَصْبَهَانِيُّ ثنا حَفْصُ بْنُ غِيَاثٍ عَنْ عَاصِمٍ الْأَحْوَلِ عَنِ السُّمَيْطِ بْنِ سُمَيْرٍ عَنْ عِمْرَانَ بْنِ حُصَيْنٍ قَالَ

بَعَثَ رَسُولُ اللهِ ﷺ سَرِيَّةً فَحَمَلَ رَجُلٌ عَلَى رَجُلٍ مِنَ الْمُشْرِكِينَ فَلَمَّا غَشِيَهُ بِالرُّمْحِ قَالَ إِنِّي مُسْلِمٌ فَقَتَلَهُ ثُمَّ أَتَى النَّبِيَّ ﷺ فَقَالَ إِنِّي أَذْنَبْتُ فَاسْتَغْفَرْ لِي قَالَ «وَمَا ذَاكَ؟» قَالَ حَمَلَتُ عَلَى رَجُلٍ مِنَ الْمُشْرِكِينَ فَلَمَّا غَشَيْتُهُ بِالرُّمْحِ قَالَ إِنِّي مُسْلِمٌ فَظَنَنْتُ أَنَّهُ مُتَعَوِّذٌ فَقَتَلْتُهُ فَقَالَ «هَلَّا شَقَقْتَ عَنْ قَلْبِهِ حَتَّى يَسْتَبِينَ لَكَ؟» قَالَ وَيَسْتَبِينُ لِي يَا رَسُولَ اللهِ؟ قَالَ «قَدْ قَالَ لَكَ بِلِسَانِهِ فَلَمْ تُصَدِّقْهُ عَلَى مَا قَالَ فِي قَلْبِهِ» قَالَ فَمَاتَ الرَّجُلُ فَدَفَنَّاهُ فَأَصْبَحَ عَلَى وَجْهِ الْأَرْضِ فَأَمَرْنَا غِلْمَانَنَا فَحَرَسُوهُ فَأَصْبَحَ عَلَى وَجْهِ الْأَرْضِ فَقُلْنَا غَفَلُوا فَحَرَسْنَاهُ فَأَصْبَحَ عَلَى وَجْهِ الْأَرْضِ فَأَتَيْنَا النَّبِيَّ ﷺ فَأَخْبَرْنَاهُ فَقَالَ «أَمَا إِنَّهَا تُقْبَلُ مَنْ هُوَ شَرٌّ مِنْهُ وَلَكِنَّ اللهَ أَرَادَ أَنْ يُعَلِّمَكُمْ تَعْظِيمَ الدَّمِ» ثُمَّ قَالَ «اذْهَبُوا بِهِ إِلَى سَفْحِ هَذَا الْجَبَلِ فَانْضِدُوا عَلَيْهِ مِنَ الْحِجَارَةِ» فَفَعَلْنَا