{Have they not traveled in the earth and seen how was the end of those who were before them?} meaning: Allah destroyed them. {And for the disbelievers is something similar to it,} meaning: the end of those upon whom the Hour will be established, namely the disbelievers of the end of this nation; they shall be destroyed by the first blast of the trumpet.

Muhammad said: The meaning is: "And for the disbelievers is something similar to it," that is: something similar to that end.