واَسْأَلْهُمْ عَنِ الْقَرْيَةِ الَّتِي كَانَتْ حَاضِرَةَ الْبَحْرِ إِذْ يَعْدُونَ فِي السَّبْتِ إِذْ تَأْتِيهِمْ حِيتَانُهُمْ يَوْمَ سَبْتِهِمْ شُرَّعاً وَيَوْمَ لاَ يَسْبِتُونَ لاَ تَأْتِيهِمْ كَذَلِكَ نَبْلُوهُم بِمَا كَانُوا يَفْسُقُونَ
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سورة الأعراف
(7/163) And ask them about the town that was (once) by the sea. They exceed the limits of the Sabbath (Saturday), when the fish come to them on the day of their Sabbath (on the day when the prohibition was carried out), appearing on the surface of the water. And on the day on which they do not keep the Sabbath (on the day when the prohibition was not carried out) (the fish) do not come to them. Thus did We try them because they were in Fısq.
Surah Al-A'raf