سورة Al-Kahf ( The Cave ) - الآية 21

This is how We made their case known so that the people might know that the promise of Allah is true and that there is no doubt about the Hour. When they were disputing among themselves[13] concerning their matter [of resurrection], they said, “Build a structure over them. Their Lord knows best about them.” Those who prevailed in their matter said, “We will surely build over them a place of worship.”