Why do trials come, and in what forms? These verses answer that Allah tests people through what He has given them and through the adornments of the earth, to show which of them is best in deeds. They cite prophets who were tested, such as Abraham and Ishmael, the soldiers of Talut (Saul) tried with a river, and the believers tested on the day of the Confederates.
Verses gathered from a topical index of the Quran, in Mushaf order; every verse is quoted in full.
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.