Marrying Sister-In-Law: What Islam Says About It

In Islam, a man is forbidden from marrying his sister-in-law if she is the sister of his current wife. This is because Islam forbids men from having two sisters as co-wives at the same time. However, if the man's wife passes away or they get divorced, he is permitted to marry her sister. It is important to note that certain relationships are prohibited in Muslim law, including marriages with immediate family members such as mothers, daughters, sisters, and nieces.

A Muslim man can marry his sister-in-law if his wife dies or he divorces her

In Islam, a man is forbidden from marrying two sisters at the same time. This is because the feeling of love and sisterliness that Islam wants to maintain between sisters would be destroyed if one sister became the co-wife of the same husband.

However, a Muslim man can marry his sister-in-law if his wife dies or he divorces her. This is because the original marriage would have been valid, and the man would have married his wife and her sister at different times.

It is important to note that while this is permissible, it is not encouraged. Divorcing one sister to marry the other may lead to many disadvantages, and it is obligatory to fear Allah and avoid such thoughts.

In addition, there are several other relationships that are prohibited under Muslim law. For example, a man cannot marry his mother, grandmother, daughter, granddaughter, sister, niece, great-niece, aunts, or great-aunts. This also extends to the wife's relatives, such as her mother, daughter, or granddaughter.

It is forbidden in Islam to marry two sisters at the same time

In Islam, it is forbidden for a man to marry two sisters simultaneously. This is because the feeling of love and sisterliness that Islam wants to maintain between blood relatives would be destroyed if the siblings became co-wives.

According to the Dissolution of Muslim Marriages Act, 1939, certain relationships are prohibited under the law. This means that a person cannot marry specific relatives, including their mother, grandmother, daughter, granddaughter, sister, niece, great-niece, aunts, or great-aunts.

The Quran also forbids marrying two sisters simultaneously. Allah says when mentioning the women whom Muslims are forbidden to marry:

> "...and that you take [in marriage] two sisters simultaneously..." [Quran, 4:23]

The Prophet Muhammad (peace and blessings of Allah be upon him) also forbade marrying two sisters. It was reported that Fayruz Ad-Daylami said to the Prophet:

> "O Messenger of Allah, I have become Muslim and I am married to two sisters."

> The Messenger of Allah (peace and blessings of Allah be upon him) said: "Choose whichever of them you want [i.e., and divorce the other]."

Therefore, a Muslim man cannot marry two sisters at the same time. However, if a man's wife passes away or he divorces her, it is permissible for him to marry her sister after her waiting period finishes.

A man cannot marry his mother, daughter, sister, niece, aunt, or any of their descendants

In Islam, a man cannot marry his mother, grandmother, daughter, granddaughter, sister, niece, great-niece, aunts, or great-aunts. This is because they are considered his mahram, meaning that marriage with them is permanently unlawful (haram). All other relatives are considered non-maharim.

A man is also forbidden from marrying two sisters simultaneously. This is because Islam wants to maintain the feeling of love and sisterliness between sisters, which would be destroyed if one sister became the co-wife of another sister's husband. However, if a man's wife dies or he divorces her, it is permissible for him to marry her sister.

A man is also prohibited from marrying his wife's mother or grandmother, his wife's daughter or granddaughter, and his son's wife in the case of a second, third, or fourth marriage. Additionally, a man cannot marry his sister's daughter, as this is completely forbidden in Sharia law according to the Holy Quran.

It is important to note that these prohibitions apply to both blood relations and marriages, including foster relationships. For example, a man cannot marry his foster mother's daughter.

Marriage between step-siblings is generally prohibited in Muslim law

In Muslim law, a mahram is a family member with whom marriage would be considered permanently unlawful (haram). For men, mahram women include his mother, grandmother, daughter, granddaughter, sister, niece, great-niece, aunts, great-aunts, and other relatives. Muslim law also forbids men from marrying two sisters simultaneously. This is because the feeling of love and sisterliness that Islam wants to maintain between sisters would be destroyed if one sister became the co-wife of the other sister's husband.

In India, if a single father marries a single mother, their respective children from previous relationships would typically become step-siblings. Under Indian law, marriage between step-siblings is generally prohibited. While Muslim law does not explicitly mention step-sibling marriages, such unions are typically discouraged due to social norms and the legal presumption that they belong to the same family unit. However, if step-siblings wanted to marry, they could apply for special permission under the Special Marriage Act, which allows for certain exemptions from prohibited degrees of relationship.

In summary, while Muslim law does not explicitly prohibit marriage between step-siblings, it is generally discouraged due to social norms and the interpretation of step-siblings belonging to the same family unit. If step-siblings wished to marry, they may be able to seek special permission through the Special Marriage Act.

A man cannot marry his wife's mother, daughter, or granddaughter

In Islam, a man cannot marry his wife's mother, daughter, or granddaughter. This is because, in Islam, a mahram is a family member with whom marriage would be considered permanently unlawful (haram). For a man, mahram women include his mother, grandmother, daughter, granddaughter, sister, aunt, grandaunt, niece, grandniece, his father's wife, his wife's daughter (step-daughter), and his daughter-in-law.

Islam forbids taking two sisters as co-wives simultaneously. This is because the feeling of love and sisterliness that Islam wants to maintain between sisters would be destroyed if one sister became the co-wife of another sister's husband. The Quran states:

> { …and that you take [in marriage] two sisters simultaneously…} [Quran 4:23]

However, if a man's wife dies or he divorces her and her waiting period finishes, it is permissible for him to marry her sister.

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