In The Name of Allaah, The Most Merciful, The Bestower of Mercy.
Imaam As-Sadi [may Allaah have mercy upon him] said:
What the Sharee’ah has brought regarding the permissibility of good things, such as various types of foods, drinks, clothes, the bond of marriage and other affairs: every good and useful thing has been permitted by the Sharee’ah, such as all kinds of grains, fruits, the meat of all marine animals without exception and animals that live on land. It did not forbid anything from these things, except that which is evil and harmful to one religious affairs, intellect, body or wealth. (see appendix a)
What Allaah permits for them is due to His benevolence and the virtue of the religion He has ordained; and what He has forbidden is due to His kindness and the virtue of the religion He has ordained, because He only forbade what harms them, and the virtue of something is attached to its wisdom and welfare, and safeguard against harm.
The same applies to the marriages which Allaah has permitted, and that a man may marry the women he pleases – two, three and four, because of the benefit that comes to both parties and the harm that is repelled. It is not permissible for a man to marry more than four free women at the same time, because of the wrong doing and absence of justice that may result from that. And alongside this, he is urged to limit himself to one wife if he fears that he will be unable to do justice and fulfil the divine ordainments related to marriage. And just as marriage is one of the greatest blessings and necessities, likewise is divorce, lest a person’s life is spent with someone who is neither suitable nor in agreement, and thus compelled to remain in a difficult situation and severe hardship. Allaah said: [وإن يتفرقا يغن الله كلا من سعته – But if they separate (by divorce), Allah will provide abundance for everyone of them from His Bounty]. [Surah An-Nisaa. Aayah 130] (see appendix b) (1)
Appendix a: Read articles and listen to audio by Shaikh Abu Khadeejah [may Allaah preserve him]:
Bulūgh al-Marām: The Book of Purification – “A clarification that all sea creatures are halāl to eat.” — By Abu Khadeejah [Lesson 4]
Divorce, Three Talāqs In One Sitting, Taking One’s Wife Back, Waiting Period and Remarriage (Islam 5.3)
The LGBTQ Movement: Homosexuality and Islam: Understanding Muslim Attitudes To Homosexuality (Islam 5.7)
Why Homosexuality is Prohibited in Islam. Must read for Muslim parents wanting to raise their children upon traditional family values with clear, firm identities built upon immutable biological realities. Print copy (206 pp) available from: http://www.islamhomosexuality.com/hs/
[Ref 1: Ad-Durra Al-Mukhtasar Fee Mahaasin Deen Al-Islaamiy. pages 24-25. slightly paraphrased]