My father died and left behind property without making any will regarding it. Would he be relieved of the burden of his sins if I give sadaqa on his behalf? He (the Holy Prophet) said: Yes.  

لِلنَّبِيِّ ﷺ إِنَّ أَبِي مَاتَ وَتَرَكَ مَالاً وَلَمْ يُوصِ فَهَلْ يُكَفِّرُ عَنْهُ أَنْ أَتَصَدَّقَ عَنْهُ قَالَ نَعَمْ  

My mother died all of a sudden, and I think if she (could have the opportunity) to speak she would have (made a will) regarding Sadaqa'. Will I be entitled to reward if I give charity on her behalf? He (the Holy Prophet) said: Yes.  

لِلنَّبِيِّ ﷺ إِنَّ أُمِّيَ افْتُلِتَتْ نَفْسُهَا وَإِنِّي أَظُنُّهَا لَوْ تَكَلَّمَتْ تَصَدَّقَتْ فَلِيَ أَجْرٌ أَنْ أَتَصَدَّقَ عَنْهَا قَالَ نَعَمْ  

Messenger of Allah, my mother died all of a sudden without making any will. I think if (she could have the opportunity) to speak she would have made a Sadaqa. Would there be any reward for her if I give charity on her behalf? He (the Holy Prophet) said: Yes.  

أَنَّ رَجُلاً أَتَى النَّبِيَّ ﷺ فَقَالَ يَا رَسُولَ اللَّهِ إِنَّ أُمِّيَ افْتُلِتَتْ نَفْسُهَا وَلَمْ تُوصِ وَأَظُنُّهَا لَوْ تَكَلَّمَتْ تَصَدَّقَتْ أَفَلَهَا أَجْرٌ إِنْ تَصَدَّقْتُ عَنْهَا قَالَ نَعَمْ  

This hadith has been narrated on the authority of Hisham b. 'Urwa with the same chain of transmitters.  

يَحْيَى بْنُ سَعِيدٍ وَأَمَّا شُعَيْبٌ وَجَعْفَرٌ فَفِي حَدِيثِهِمَا أَفَلَهَا أَجْرٌ كَرِوَايَةِ ابْنِ بِشْرٍ