A man said: Messenger of Allah, my mother has died ; will it benefit her if I give sadaqah on her behalf ? He said: Yes. He said: I have a garden, and I call you to witness that I have given it as sadaqah on her behalf. (Using translation from Abū Dāʾūd 2882)
عَنْهَا فَقَالَ يَا رَسُولَ اللهِ إِنَّ أُمِّي تُوُفِّيَتْ وَأَنَا غَائِبٌ عَنْهَا فَهَلْ يَنْفَعُهَا إِنْ تَصَدَّقْتُ بِشَيْءٍ عَنْهَا؟ قَالَ نَعَمْ قَالَ فَإِنِّي أُشْهِدُكَ أَنَّ حَائِطَ الْمَخْرَفِ صَدَقَةٌ عَلَيْهَا