
Islamic scholars have studied this question of which seafood is permitted and which is prohibited to be eaten by Muslims. However, they must not show signs of deterioration and spoilage. Unlike land animals, it is permitted to eat dead sea animals.They do have to be killed humanely, generally by leaving them out of the water to let them die their natural death, with a condition it isn't consider under the category of Al - Samk Al - Taafi. There is no requirement to slaughter sea animals similar to land animals, even if they are mammals.Similarly, animals that wholly live in water (not water and land) are permitted for food. It is somehow permissible to eat huge fish (or whale) even though it is not considered a true fish because it is a mammal.

Three points of jurisprudence have been established here: After returning home and informing Muhammad, they were told it was a blessing provided to them by God. They debated whether it was permissible to eat from it because it was already dead, but finally decided that their need for food exempted them should there be any sin in it. that a group of his companions ran out of food on a journey and came upon a huge sea creature, often referred to as a huge fish (or whale), washed up on the shore. It is stated in a tradition of Prophet Muhammad S.A.W. In addition, a number of ahadith (traditions of Muhammad) also address the subject of seafood.

In fact, God has subjected the seas to human beings so they may partake of their bounty and benefit by what has been provided. These verses state that it is lawful to fish for food. And thou seest the ship cleaving them with its prow that ye may seek of His bounty, and that haply ye may give thanks. And from them both ye eat fresh meat and derive the ornament that ye wear.
