Answer
Wa `alaykum as-Salamu wa Rahmatullahi wa Barakatuh.
In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
In this fatwa:
1- Whatever your mother left should be distributed as soon as possible.
2- In your case, the share of your father will be 25 percent of all your mother’s possessions. The balance should be divided between you and your sisters. Your share will be 25 percent and your sisters should receive 12.5 percent each.
In his response to your question, Dr. Muzammil H. Siddiqi, former President of the Islamic Society of North America, states,
After the death of a person, it is important that his/her property is distributed according to the Islamic law of inheritance. Whatever your mother left should be distributed as soon as possible. In your case, the share of your father will be 25 percent of all your mother’s possessions. The balance should be divided between you and your sisters. Your share will be 25 percent and your sisters should receive 12.5 percent each.
The nisab of Zakah, that is, the minimum amount that makes the wealth zakatable, as well as the rate of zakat, was fixed by the Prophet (peace and blessings be upon him). Just as the Prophet fixed the rak`ahs of Prayers and gave us other details about salah, in a similar way he also told us about Zakah.
It is very important that we follow the guidance of the Prophet in this matter. Just as you cannot change the number of rak`ahs of the Prayers, you also cannot change the ratio of Zakah.
It is obligatory to pay Zakah on gold and silver and also on cash money at the rate of 2.5 percent. It is reported that the Prophet (peace and blessings be upon him) used to tell the people to give one dinar from every forty dinars. (Abu Dawud and Ibn Majah)
Allah Almighty knows best.
Editor’s note: This fatwa is from Ask the Scholar’s archive and was originally published at an earlier date.