Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) said that (the surah) "Idha zulzilat al-ardu zilzalaha" (When the earth is shaken with its utmost quake) was revealed while Sayyiduna Abu Bakr (may Allah be pleased with him) was sitting, and Sayyiduna Abu Bakr (may Allah be pleased with him) wept. The Messenger of Allah (peace and blessings be upon him) said: "Abu Bakr, what has made you weep?" He said: This surah has made me weep. The Messenger of Allah (peace and blessings be upon him) said: "If you did not err and sin, Allah would create after you a nation who would err and sin, and He would forgive them."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 13684