This chapter was revealed in Mecca and consists of 50 verses. The chapter talks about the Day of Separation, which is the Day of Resurrection. It emphasizes its occurrence, warns those who deny it, and gives good news to others. The aspect of warning is more pronounced in this chapter than the good promise, as it repeats ten times: Woe to the deniers on that day! The theme of the chapter clearly shows that it was revealed in Mecca.