Hadith 1474
Narrated Saad ibn Ubadah: The Prophet ﷺ said: No man recites the Quran, then forgets it, but will meet Allah on the Day of Judgment in a maimed condition (or empty-handed, or with no excuse).
Hadith 1679
Saeed reported Saad came to the Prophet ﷺ and asked him Which sadaqah do you like most? He replied Water.
Hadith 1680
The above mentioned tradition has also been narrated by Saad bin Ubadah from the Prophet ﷺ in the same manner.
Hadith 1681
Narrated Saad ibn Ubadah: Saad asked: Messenger of Allah, Umm Saad has died; what form of sadaqah is best? He replied: Water (is best). He dug a well and said: It is for Umm Saad.