That he heard is father, narating a Hadith, which he heard from the Messenger of Allah ﷺ in which he stood among them, mentioning to them that Jihad in the cause of Allah and faith in Allah were the most virtuous of deeds. Then a man stood and said: "O Messenger of Allah! If I were killed in the cause of Allah, would my sins forgiven ?" So the Messenger of Allah ﷺ said: "Yes, If you are killed in Allah's cause, and you are patient, seeking the reward, advancing, not fleeing." Then the Messenger of Allah ﷺ said: "What was it that you said?" So he replied: "If I were killed in the cause of Allah, would my sins be removed (forgiven)?" So the Messenger of Allah ﷺ said: "Yes, If you are patient, seeking the reward, advancing, not fleeing - except debt. For Jibril said that to me." (Using translation from Tirmidhī 1712)
أَنَّ رَسُولَ اللهِ ﷺ قَامَ فَخَطَبَ النَّاسَ فَذَكَرَ أَنَّ الْإِيمَانَ بِاللهِ وَالْجِهَادَ فِي سَبِيلِ اللهِ مِنْ أَفْضَلِ الْأَعْمَالِ عِنْدَ اللهِ فَقَامَ رَجُلٌ فَقَالَ يَا رَسُولَ اللهِ إِنْ قُتِلْتُ فِي سَبِيلِ اللهِ وَأَنَا صَابِرٌ مُحْتَسِبٌ مُقْبِلٌ غَيْرُ مُدْبِرٍ يُكَفِّرُ اللهُ عَنِّي خَطَايَايَ؟ قَالَ نَعَمْ فَكَيْفَ قُلْتَ؟ قَالَ إِنْ قُتِلْتُ فِي سَبِيلِ اللهِ وَأَنَا صَابِرٌ مُحْتَسِبٌ مُقْبِلٌ غَيْرُ مُدْبِرٍ يُكَفِّرُ اللهُ عَنِّي خَطَايَايَ؟ قَالَ نَعَمْ كَيْفَ قُلْتَ؟ قَالَ إِنْ قُتِلْتُ فِي سَبِيلِ اللهِ وَأَنَا صَابِرٌ مُحْتَسِبٌ مُقْبِلٌ غَيْرَ مُدْبِرٍ يُكَفِّرُ اللهُ عَنِّي خَطَايَايَ؟ قَالَ نَعَمْ إِلَّا الدَّيْنَ فَإِنَّ جِبْرِيلَ سَارَّنِي بِذَلِكَ