The Messenger of Allah ﷺ would not say funeral prayer over a person who died while the debt was due from him. A dead Muslim was brought to him and he asked: Is there any debt due from him? They (the people) said: Yes, two dirhams. He said: Pray yourselves over your companion. Then AbuQatadah al-Ansari said: I shall pay them, Messenger of Allah. The Messenger of Allah ﷺ then prayed over him. When Allah granted conquests to the Messenger of Allah ﷺ, he said: I am nearer to every believer than himself, so if anyone (dies and) leaves a debt, I shall be responsible for paying it; and if anyone leaves property, it goes to his heirs.
كَانَ رَسُولُ اللَّهِ ﷺ لاَ يُصَلِّي عَلَى رَجُلٍ مَاتَ وَعَلَيْهِ دَيْنٌ فَأُتِيَ بِمَيِّتٍ فَقَالَ أَعَلَيْهِ دَيْنٌ قَالُوا نَعَمْ دِينَارَانِ قَالَ صَلُّوا عَلَى صَاحِبِكُمْ فَقَالَ أَبُو قَتَادَةَ الأَنْصَارِيُّ هُمَا عَلَىَّ يَا رَسُولَ اللَّهِ قَالَ فَصَلَّى عَلَيْهِ رَسُولُ اللَّهِ ﷺ فَلَمَّا فَتَحَ اللَّهُ عَلَى رَسُولِ اللَّهِ ﷺ قَالَ أَنَا أَوْلَى بِكُلِّ مُؤْمِنٍ مِنْ نَفْسِهِ فَمَنْ تَرَكَ دَيْنًا فَعَلَىَّ قَضَاؤُهُ وَمَنْ تَرَكَ مَالاً فَلِوَرَثَتِهِ