What is the share of each heir from among three full sisters, a full brother’s son, and a full brother’s daughter, from the estate of a deceased woman, and which of them is excluded from inheritance?

If a woman dies without offspring, her estate is divided as follows:

- The two-thirds go to the sisters, based on the verse: ﴿فَإِنْ كَانَتَا اثْنَيْنِ فَلَهُمَا الثُّلُثَانِ مِمَّا تَرَكَ﴾ (If there are two, for them is two-thirds of what she left).

- The remaining one-third goes to the full brother's son, based on the Prophet's (peace be upon him) saying: "Give the prescribed shares to those who are entitled to them, and whatever remains is for the closest male relative."

- The full brother's daughter has no share, as she is not an heir.