And from his narration on the authority of Ibn 'Abbas who said in explaining Allah's words (O mankind!): '(O mankind!) this expression could be of general applicability ('amm) as it could be of particular applicability (khass); here, it is an expression of general applicability. (Fear your Lord) and obey him. (Lo! the earthquake of the Hour (of Doom)) the advent of the Hour (is a tremendous thing) its horror is horrendous.