It is narrated from Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) that he said: "A man came to the Messenger of Allah (peace and blessings be upon him) and said: 'O Messenger of Allah, teach me to recite (the Qur'an).' The Messenger of Allah (peace and blessings be upon him) said to him: 'Recite three of the surahs that begin with (Alif Lam Ra).' The man said: 'My age has advanced, my heart has become hard, and my tongue has become heavy.' He (peace and blessings be upon him) said: 'Then recite three of the surahs that begin with (Ha Mim).' He repeated the same thing again. He (peace and blessings be upon him) said: 'Then recite three of the Musabbihat (the surahs beginning with Sabbaha and Yusabbihu).' He again gave the same excuse and said: 'O Messenger of Allah, teach me one comprehensive surah.' So the Messenger of Allah (peace and blessings be upon him) taught him "When the earth is shaken" (Surah al-Zalzalah) until he finished it. The man said: 'By the One who sent you with the truth, I will never add anything to it.' Then the man turned and left, and the Messenger of Allah (peace and blessings be upon him) said: 'This little man has succeeded.' Then he (peace and blessings be upon him) mentioned the deeds that would keep him steadfast." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that he said: The Messenger of Allah (peace and blessings be upon him) recited this verse: "That Day it will report its news" [Surah al-Zalzalah: 4] , and asked: "Do you know what its news is?" The Companions said: Allah and His Messenger know best. He (peace and blessings be upon him) said: "Its news is that it will bear witness against every male and female servant for what they did upon its back; it will say: He did such and such a deed on such and such a day. That is its news." The chain of this hadith is sahih (authentic), but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Abu Asma' al-Rahabi (may Allah have mercy on him) that he said: Once Sayyiduna Abu Bakr al-Siddiq (may Allah be pleased with him) was eating with the Messenger of Allah (peace and blessings be upon him) when this verse was revealed: "So whoever does an atom's weight of good will see it, and whoever does an atom's weight of evil will see it" [Surah al-Zalzalah: 7-8] . So Sayyiduna Abu Bakr (may Allah be pleased with him) withheld (his hand from the food) and said: O Messenger of Allah, will we see every evil that we have done? He (peace and blessings be upon him) said: "The painful and disliked things that befall you (in this world) are the recompense for those very evils, while the good is deferred for its people until the Hereafter." Its chain is sahih (authentic), but the two Shaykhs (Bukhari and Muslim) did not record it.