Musannaf Ibn Abi Shaybah 33084 — A woman who bequeathed one third

Al-Awza'i said: Al-Zuhri was asked about a woman who made a bequest of a third of her wealth to be given to her husband in the cause of Allah. He said: This bequest is not valid, except when she says: "This wealth is to be given to my husband to give in the way of Allah," and he may spend it wherever he wishes.