Ibn 'Umar reported God's messenger as saying, "If anyone would like to look at the day of resurrection as though it were before his eyes he should recite:
`When the sun is obscured[1] `When the sky shall be split open[2] and `When the sky shall be rent asunder.'"[3]
1. Quran, 81
2. Quran, 82
3. Quran, 84
Ahmad and Tirmidhi transmitted it.