His statement: "And he certainly warned them of Our assault," meaning: Our punishment. "But they disputed the warnings," meaning: they denied what Lot had said to them.
قَوْله: ﴿وَلَقَد أَنْذرهُمْ بطشتنا﴾ أَي: عذابنا ﴿فتماروا بِالنذرِ﴾ كذبُوا بِمَا قَالَ لَهُم لوطٌ
