4:9Those who are concerned about the fate of their weak children, in case they leave them behind, should fear God, and speak appropriate words.

4:12You get one-half of what your wives leave behind, if they had no children. If they had children, you get one-fourth of what they leave. After fulfilling any bequest and paying off debts. They get one-fourth of what you leave behind, if you have no children. If you have children, they get one-eighth of what you leave. After fulfilling any bequest and paying off debts. If a man or woman leaves neither parents nor children, but has a brother or sister, each of them gets one-sixth. If there are more siblings, they share one-third. After fulfilling any bequest and paying off debts, without any prejudice. This is a will from God. God is Knowing and Clement.

4:72Among you is he who lags behind. Then, when a calamity befalls you, he says, “God has favored me, that I was not martyred with them.”