Surah Al-A'raf 7:163

وَسْـَٔلْهُمْ عَنِ ٱلْقَرْيَةِ ٱلَّتِى كَانَتْ حَاضِرَةَ ٱلْبَحْرِ إِذْ يَعْدُونَ فِى ٱلسَّبْتِ إِذْ تَأْتِيهِمْ حِيتَانُهُمْ يَوْمَ سَبْتِهِمْ شُرَّعًا وَيَوْمَ لَا يَسْبِتُونَ ۙ لَا تَأْتِيهِمْ ۚ كَذَٰلِكَ نَبْلُوهُم بِمَا كَانُوا۟ يَفْسُقُونَ

And ask them about the town that was by the sea - when they transgressed in [the matter of] the sabbath - when their fish came to them openly on their sabbath day, and the day they had no sabbath they did not come to them. Thus did We give them trial because they were defiantly disobedient.

Translation: Saheeh International

Tafsir

And question them O Muhammad (s) in rebuke about the city that was by the sea bordering the Red Sea bahr al-qulzum and this was Eilat about what befell its inhabitants how they would transgress violate the Sabbath by fishing which they had been commanded not to do on that day; …

Excerpt from Tafsir al-Jalalayn, commentary on 7:163, via Quran.com. The reader has the full commentary and 9 more tafsirs.