Jami` at-Tirmidhi 1620
جامع الترمذي#1620Sahihحَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ بَزِيعٍ، حَدَّثَنَا الْمُعْتَمِرُ بْنُ سُلَيْمَانَ، حَدَّثَنِي مَرْزُوقٌ أَبُو بَكْرٍ، عَنْ قَتَادَةَ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَعْنِي " يَقُولُ اللَّهُ عَزَّ وَجَلَّ الْمُجَاهِدُ فِي سَبِيلِ اللَّهِ هُوَ عَلَىَّ ضَامِنٌ إِنْ قَبَضْتُهُ أَوْرَثْتُهُ الْجَنَّةَ وَإِنْ رَجَعْتُهُ رَجَعْتُهُ بِأَجْرٍ أَوْ غَنِيمَةٍ " . قَالَ هُوَ صَحِيحٌ غَرِيبٌ مِنْ هَذَا الْوَجْهِ
Narrated Anas bin Malik: "The Messenger of Allah (ﷺ) said: meaning: Allah Mighty and Sublime is He says: 'The Mujahid in My cause, he has guarantee fro Me. If I I seize him, I cause him to inherit Paradise, and if I return him, I return him with a reward or spoils of war.'" [He said:] This Hadith is Gharib Sahih from this route
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: 22:2