FISH Arabic samak سمك
(1) Fish which, dying of themselves float upon the surface of the water are abominated, according to Abu Hanifah. Ash Shaf’i and Malik say they are indifferent. Abu Hanifah teaches that fish which are killed by accident are lawful but such as die of themselves without any accident are unlawful. There are, however, different opinions regarding those which die of extreme heat or cold.
(2) In the law of sale it is not lawful to sell fish which is not yet caught, nor is it lawful to sell fish which the vendor may have caught and afterwards thrown into a large tank.
(3) Whilst the destruction of all animals except noxious ones is forbidden during the pilgrimage, fishing in the sea is permitted by the Qur’an, Surah v 97. “Lawful for you is the game of the sea.”
Based on Hughes, Dictionary of Islam