Surah 4

Surah 4:176

"They ask you for a pronouncement. Say: ‘God makes a pronouncement to you about the person who leaves no direct heirs. If a man perishes without children, but has a sister, then to her a half of what he leaves, and he is her heir if she has no children. If there are two (sisters), then to them two-thirds of what he leaves. If there are brothers and sisters, then to the male a share equal to two females. God makes (this) clear to you, so that you do not go astray. God has knowledge of everything."