Jami` at-Tirmidhi 1654
جامع الترمذي#1654Sahihحَدَّثَنَا 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 صلى الله عليه وسلم قَالَ " مَنْ سَأَلَ اللَّهَ الْقَتْلَ فِي سَبِيلِهِ صَادِقًا مِنْ قَلْبِهِ أَعْطَاهُ اللَّهُ أَجْرَ الشَّهِيدِ " . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .
Narrated Mu’adh bin 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
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 22:37