then your lord declared he would send against them he who would oppress them cruelly till the day of resurrection. swift is the retribution of your lord yet surely he is forgiving the most merciful.
وإذ تأذن ربك ليبعثن عليهم إلى يوم القيامة من يسومهم سوء العذاب إن ربك لسريع العقاب وإنه لغفور رحيم