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.
tirmidhi:1654Aḥmad b. Manīʿ > Rawḥ b. ʿUbādah > Ibn Jurayj > Sulaymān b. Mūsá > Mālik b. Yukhāmir al-Saksakī > Muʿādh b. Jabal

That the Prophet ﷺ said: "Whoever asks Allah to be killed in His cause sincerely from his heart, Allah shall give him the reward of martyrdom.  

[Abu 'Eisa said:] This Hadith is Hasan Sahih.
الترمذي:١٦٥٤حَدَّثَنَا أَحْمَدُ بْنُ مَنِيعٍ حَدَّثَنَا رَوْحُ بْنُ عُبَادَةَ حَدَّثَنَا ابْنُ جُرَيْجٍ عَنْ سُلَيْمَانَ بْنِ مُوسَى عَنْ مَالِكِ بْنِ يُخَامِرَ السَّكْسَكِيِّ عَنْ مُعَاذِ بْنِ جَبَلٍ

عَنِ النَّبِيِّ ﷺ قَالَ مَنْ سَأَلَ اللَّهَ الْقَتْلَ فِي سَبِيلِهِ صَادِقًا مِنْ قَلْبِهِ أَعْطَاهُ اللَّهُ أَجْرَ الشَّهِيدِ  

قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ

See similar narrations below:

Collected by Tirmidhī, Ḥākim, Suyūṭī
tirmidhi:1653Muḥammad b. Sahl b. ʿAskar al-Baghdādī > al-Qāsim b. Kathīr al-Miṣrī > ʿAbd al-Raḥman b. Shurayḥ > Sahl b. Abū Umāmah b. Sahl b. Ḥunayf from his father from his grandfather

From his father, from his grandfather, that the Prophet ﷺ said: "Whoever asks Allah for Martyrdom sincerely in his heart, Allah will grant the status of martyrdom for him, even if he were to die in his bed."  

[Abu 'Eisa said:] This Hadith is Hasan Gharib as a narration of Sahl bin Hunaif. We do not know of it except from the report of 'Abdur-Rahman bin Shuraih. 'Abdullah bin Salih reported it from 'Abdur-Rahman bin Shuraih, and 'Abdur-Rahman bin Shuraih's kunyah is Abu Shuriah, and he is from Iskandarani. There is something on this topic from Mu'adh bin Jabal.
الترمذي:١٦٥٣حَدَّثَنَا مُحَمَّدُ بْنُ سَهْلِ بْنِ عَسْكَرٍ الْبَغْدَادِيُّ حَدَّثَنَا الْقَاسِمُ بْنُ كَثِيرٍ الْمِصْرِيُّ حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ شُرَيْحٍ أَنَّهُ سَمِعَ سَهْلَ بْنَ أَبِي أُمَامَةَ بْنِ سَهْلِ بْنِ حُنَيْفٍ يُحَدِّثُ عَنْ أَبِيهِ عَنْ جَدِّهِ

عَنِ النَّبِيِّ ﷺ قَالَ مَنْ سَأَلَ اللَّهَ الشَّهَادَةَ مِنْ قَلْبِهِ صَادِقًا بَلَّغَهُ اللَّهُ مَنَازِلَ الشُّهَدَاءِ وَإِنْ مَاتَ عَلَى فِرَاشِهِ  

قَالَ أَبُو عِيسَى حَدِيثُ سَهْلِ بْنِ حُنَيْفٍ حَدِيثٌ حَسَنٌ غَرِيبٌ لاَ نَعْرِفُهُ إِلاَّ مِنْ حَدِيثِ عَبْدِ الرَّحْمَنِ بْنِ شُرَيْحٍ وَقَدْ رَوَاهُ عَبْدُ اللَّهِ بْنُ صَالِحٍ عَنْ عَبْدِ الرَّحْمَنِ بْنِ شُرَيْحٍ وَعَبْدُ الرَّحْمَنِ بْنُ شُرَيْحٍ يُكْنَى أَبَا شُرَيْحٍ وَهُوَ إِسْكَنْدَرَانِيٌّ وَفِي الْبَابِ عَنْ مُعَاذِ بْنِ جَبَلٍ
hakim:2411ʿAlī b. ʿĪsá al-Ḥīrī > al-Ḥusayn b. Muḥammad b. Ziyād And ʿAbd Allāh b. Muḥammad b. ʿAbd al-Raḥman > Muḥammad b. ʿAbdullāh b. Bazīʿ > Muʿtamir b. Sulaymān > Abū > Anas b. Mālik > Nabī Allāh ﷺ

[Machine] The Prophet of Allah ﷺ said, "Whoever sincerely asks Allah for martyrdom in His cause and then dies, Allah will grant him the reward of a martyr" according to the condition of Al-Bukhari and Muslim.  

الحاكم:٢٤١١حَدَّثَنَاهُ عَلِيُّ بْنُ عِيسَى الْحِيرِيُّ ثنا الْحُسَيْنُ بْنُ مُحَمَّدِ بْنِ زِيَادٍ وَعَبْدُ اللَّهِ بْنُ مُحَمَّدِ بْنِ عَبْدِ الرَّحْمَنِ قَالَا ثنا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ بَزِيعٍ ثنا مُعْتَمِرُ بْنُ سُلَيْمَانَ قَالَ سَمِعْتُ أَبِيَ يُحَدِّثُ عَنْ أَنَسِ بْنِ مَالِكٍ

أَنَّ نَبِيَّ اللَّهِ ﷺ قَالَ «مَنْ سَأَلَ اللَّهَ الْقَتْلَ فِي سَبِيلِ اللَّهِ صَادِقًا ثُمَّ مَاتَ أَعْطَاهُ اللَّهُ أَجْرَ شَهِيدٍ» على شرط البخاري ومسلم  

suyuti:21665a
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السيوطي:٢١٦٦٥a

"مَنْ سَأَلَ الله الْقَتْلَ في سَبِيلِ الله صَادِقًا مِنْ قَلْبِهِ أَعْطَاهُ الله أَجْرَ شَهِيدٍ وَإِنْ مَاتَ عَلَى فِرَاشِهِ".  

[ع] أبو يعلى [ك] الحاكم في المستدرك عن أَنس، [ت] الترمذي حسن صحيح عن معاذ