"O Messenger of Allah, my mother has died; can I give charity on her behalf?" He said: "Yes." He said: "What kind of charity is best?" He said: "Providing drinking water." And that is the drinking-fountain of Sa'd in Al-Madinah.
يَا رَسُولَ اللَّهِ إِنَّ أُمِّي مَاتَتْ أَفَأَتَصَدَّقُ عَنْهَا قَالَ نَعَمْ قَالَ فَأَىُّ الصَّدَقَةِ أَفْضَلُ قَالَ سَقْىُ الْمَاءِ فَتِلْكَ سِقَايَةُ سَعْدٍ بِالْمَدِينَةِ