Is a bequest valid if it is oral, and the testator cannot read or write and has no wealth to bequeath?

The questioner : Another question: some people ask about the legal bequest, saying, "I am a man, for example, who cannot write or read."

The Shaykh : Yes.

The questioner : And he has no money now. He says, "If I make an oral bequest with my words, telling them to fear Allah and do good deeds, and I do not want to write it or put this bequest under my pillow or something like that, is that sufficient according to the Sunnah?"

The Shaykh : If he has no rights owed to him and no rights owed by others, and he does not know that his heirs are in need of a written bequest, and he is content in this situation with this oral bequest as you mentioned, with these conditions and restrictions, then it is permissible.

The questioner: Yes.