Musnad Ahmad 27:485

'Abd al-Razzaq narrated to us, 'Abd Allah ibn Buhayr al-Qass informed us, that 'Abd al-Rahman ibn Yazid al-San'ani informed him that he heard Ibn 'Umar say: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Whoever is pleased to look at the Day of Resurrection as if he is seeing it with his own eyes, then let him read: 'When the sun is wrapped up' (Idha al-shamsu kuwwirat), 'When the heaven is cleft asunder' (Idha al-sama'u infatarat), and 'When the heaven has split open' (Idha al-sama'u inshaqqat)." And I think he said: "And Surah Hud."