Surah Al-Ma'idah 5:96

أُحِلَّ لَكُمْ صَيْدُ ٱلْبَحْرِ وَطَعَامُهُۥ مَتَـٰعًا لَّكُمْ وَلِلسَّيَّارَةِ ۖ وَحُرِّمَ عَلَيْكُمْ صَيْدُ ٱلْبَرِّ مَا دُمْتُمْ حُرُمًا ۗ وَٱتَّقُوا۟ ٱللَّهَ ٱلَّذِىٓ إِلَيْهِ تُحْشَرُونَ

Lawful to you is game from the sea and its food as provision for you and the travelers, but forbidden to you is game from the land as long as you are in the state of iḥrām. And fear Allāh to whom you will be gathered.

Translation: Saheeh International

Tafsir

Permitted to you O people be you in pilgrimage inviolability or not is the game of the sea for consumption and it is what can only live in the sea such as fish but not what is able to live both in the sea and on land such as crabs; …

Excerpt from Tafsir al-Jalalayn, commentary on 5:96, via Quran.com. The reader has the full commentary and 9 more tafsirs.