Allâh's Messenger (ﷺ) said, "It is not permissible for any Muslim who has something to will, to stay for two nights without having his last will and testament written and kept ready with him." [4:1-O.B]

Narrated 'Amr bin Al-Harith, the brother of the wife of Allâh's Messenger (ﷺ) Juwairîya bint Al-Hârith: When Allâh's Messenger (ﷺ) died, he did not leave any Dirham or Dinâr (i.e. money), or a slave or a slave-woman or anything else except his white mule, his arms and a piece of land which he had given in charity. [4:2-O.B]

I asked 'Abdullâh bin Aufa, "Did the Prophet (ﷺ) make a will?" He replied, "No, "I asked him, "How is it then that the making of a will has been enjoined on people, (or that they are ordered to make a will)?" He replied, "The Prophet (ﷺ) bequeathed Allâh's Book (i.e. the Qur'ân)." [4:3-0O.B]

A man asked the Prophet (ﷺ) " O Allâh's Messenger (ﷺ)! 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 comes 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)." [4:11-O.B]

When Allâh revealed the Verse (26:214): " And warn your tribe (O Muḥammad) of near kindred, "Allâh's Messenger (ﷺ) got up and said, O Quraish people (or said similar words) ! Buy (i.e. save) yourselves (from the Hell-fire) as I cannot save you from Allâh's punishment; O Banî Abd Manâf ! I cannot save you from Allâh's punishment; O 'Abbâs bin ' Abdul Muttalib ! I cannot save you from Allâh's punishment; O, the aunt of Allâh's Messenger (ﷺ)! I cannot save you from Allâh's punishment; O bint Muhammad (ﷺ)! Ask me anything from my wealth, but I cannot save you from Allâh's punishment." [1] [4:16-O.B]

In the lifetime of Allâh's Messenger (ﷺ) 'Umar gave in charity some of his property, a garden of date-palms called Thamgh. 'Umar said, "O Allâh's Messenger (ﷺ)! I have some property which I prize highly and I want to give it in charity." The Prophet (ﷺ) said, "Give it in charity (i.e. as an endowment) with its land and trees on the condition that the land and trees will neither be sold nor given as a present, nor bequeathed, but the fruits are to be spent in charity." So 'Umar gave it in charity, and it was for Allâh's Cause, the emancipation of slaves, for the poor, for guests, for travellers, and for kinsmen. The person acting as its administrator could eat from it reasonably and fairly, and could let a friend of his eat from it provided he had no intention of becoming wealthy by its means. [4:26-0.B]