The people benefit by you

Bukhari :: Book 4 :: Volume 51 :: Hadith 7

Narrated Sad:

I fell sick and the Prophet paid me a visit. I said to him, "O Allah's Apostle! I invoke Allah that He may not let me expire in the land whence I migrated (i.e. Mecca)." He said, "May Allah give you health and let the people benefit by you." I said, "I want to will my property, and I have only one daughter and I want to will half of my property (to be given in charity)." He said," Half is too much." I said, "Then I will one third." He said, "One-third, yet even one-third is too much." (The narrator added, "So the people started to will one third of their property and that was Permitted for them.")

Bukhari :: Book 4 :: Volume 51 :: Hadith 10

Narrated Ibn 'Abbas:

The custom (in old days) was that the property of the deceased would be inherited by his offspring; as for the parents (of the deceased), they would inherit by the will of the deceased. Then Allah cancelled from that custom whatever He wished and fixed for the male double the amount inherited by the female, and for each parent a sixth (of the whole legacy) and for the wife an eighth or a fourth and for the husband a half or a fourth.

Bukhari :: Book 4 :: Volume 51 :: Hadith 11

Narrated Abu Huraira:

A man asked the Prophet, "O Allah's Apostle! What kind of charity is the best?" He replied. "To give in charity when you are healthy and greedy hoping to be wealthy and afraid of becoming poor. Don't delay giving in charity till the time when you are on the death bed when you say, 'Give so much to so-and-so and so much to so-and so,' and at that time the property is not yours but it belongs to so-and-so (i.e. your inheritors)."