A man came to the Messenger of Allah ﷺ and said: Messenger of Allah, my mother has died (in a state) that she had to observe fasts of a month (of Ramadan). Should I complete (them) on her behalf? thereupon he (the Holy Prophet) said: Would you not pay the debt if your mother had died (without paying it)? He said: Yes. He (the Holy Prophet) said: The debt of Allah deserves more that it should he paid. (Using translation from Muslim 1148b)
جَاءَ رَجُلٌ إِلَى النَّبِيِّ ﷺ قَالَ يَا رَسُولَ اللهِ إِنَّ أُمِّي مَاتَتْ وَعَلَيْهَا صَوْمُ شَهْرٍ أَفَأَقْضِيهِ عَنْهَا؟ قَالَ «لَوْ كَانَ عَلَى أُمِّكَ دَيْنٌ أَكُنْتَ قَاضِيَهُ عَنْهَا؟» قَالَ نَعَمْ قَالَ «فَدَيْنُ اللهِ أَحَقُّ أَنْ يُقْضَى» قَالَ سُلَيْمَانُ فَقَالَ الْحَكَمُ وَسَلَمَةُ بْنُ كُهَيْلٍ وَنَحْنُ جَمِيعًا جُلُوسٌ حِينَ حَدَّثَ مُسْلِمٌ بِهَذَا الْحَدِيثِ سَمِعْنَا مُجَاهِدًا يَذْكُرُ هَذَا الْحَدِيثَ عَنِ ابْنِ عَبَّاسٍ