An-Nisaa 4:176

They ask you for a ruling. Say, “Allah gives you a ruling concerning the one leaving neither descendant nor ascendant as heir. If he dies leaving no child but a sister, she will get one-half of the inheritance. Likewise, he will inherit her if she dies leaving behind no descendant. If they are two sisters, they will share two-thirds of the inheritance. Should there be both male and female siblings, then the share of a male is equal to that of two females.”[114] Allah explains it clearly so that you do not fall into error. And Allah is All-Knowing of everything.

[114] This verse can be a prelude to the next surah which carries on explaining the laws and rules for the believing community in a greater detail.

They request from you a [legal] ruling. Say, "Allāh gives you a ruling concerning one having neither descendants nor ascendants [as heirs]." If a man dies, leaving no child but [only] a sister, she will have half of what he left. And he inherits from her if she [dies and] has no child. But if there are two sisters [or more], they will have two thirds of what he left. If there are both brothers and sisters, the male will have the share of two females.[238] Allāh makes clear to you [His law], lest you go astray. And Allāh is Knowing of all things.

[238] This verse relates to siblings from the father's side or from both parents, whereas in Āyah 12 it concerned those from the mother's side alone.

176. They ask you for a legal verdict. Say: "Allâh directs (thus) about Al-Kalâlah (those who leave neither descendants nor ascendants as heirs). If it is a man that dies leaving a sister, but no child, she shall have half the inheritance. If (such a deceased was) a woman, who left no child, her brother takes her inheritance. If there are two sisters, they shall have two-thirds of the inheritance; if there are brothers and sisters, the male will have twice the share of the female. (Thus) does Allâh make clear to you (His Law) lest you go astray. And Allâh is the All-Knower of everything."

They ask thee for a pronouncement. Say: Allah hath pronounced for you concerning distant kindred. If a man die childless and he have a sister, hers is half the heritage, and he would have inherited from her had she died childless. And if there be two sisters, then theirs are two-thirds of the heritage, and if they be brethren, men and women, unto the male is the equivalent of the share of two females. Allah expoundeth unto you, so that ye err not. Allah is Knower of all things.