Musnad Ahmad 27:358

'Abd al-Razzaq narrated to us, 'Abd Allah ibn Buhayr al-San'ani the storyteller 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 it were seen with the eye, then let him read: 'When the sun is wrapped up' (Idha al-shamsu kuwwirat), 'When the sky is cleft asunder' (Idha al-sama'u infatarat), and 'When the sky has split open' (Idha al-sama'u inshaqqat)." And I think he said: "Surah Hud."