وَعَنْ سَعْدِ بْنِ عُبَادَةَ
قَالَ: يَا رَسُولَ اللَّهِ إِنَّ أُمَّ سَعْدٍ مَاتَتْ فَأَيُّ الصَّدَقَةِ أَفْضَلُ؟ قَالَ: «الْمَاءُ». فَحَفَرَ بِئْرًا وَقَالَ: هَذِهِ لأم سعد
Sad ibn Ubada told God’s messenger that Umm Sad had died and asked him what form of sadaqa was best. When he replied that water was best, he dug a well and said it was for Umm Sad. Abu Dawud and Nasai transmitted it.