Surah al-A`raf (The Elevated Places) 7 : 17

A study of its contents clearly shows that the period of its revelation is about the same as that of Surah 6: al-An’am (The Grazing Livestock), i.e. the last year of the Prophet's life at Makkah, but it cannot be asserted with certainty which of these two were sent down earlier. The manner of its admonition clearly indicates that it belongs to the same period. [Ref: Mawdudi]

It is considered the longest surah revealed during the Makkan period. Some consider this surah to have been revealed after Surah 38: Sad. [Ref: Tafsir al-Maudheei, Dr. Mustafah Muslim, vol. 3, p. 2]

Saburah bin Abi Al-Fakih (RA) said that he heard the Messenger of Allah (SAW) saying, “Shaytan sat in wait for the Son of Adam in all his paths. He sat in the path of Islam, saying, `Would you embrace Islam and abandon your religion and the religion of your forefathers' However, the Son of Adam disobeyed Shaytan and embraced Islam. So Shaytan sat in the path of Hijrah (migration in the cause of Allah), saying, `Would you migrate and leave your land and sky' But the parable of the Muhajir is that of a horse in his stamina So, he disobeyed Shaytan and migrated. So Shaytan sat in the path of Jihad, against one's self and with his wealth, saying, `If you fight, you will be killed, your wife will be married and your wealth divided.' So he disobeyed him and performed Jihad. Therefore, whoever among them (Children of Adam) does this and dies, it will be a promise from Allah that He admits him into Paradise. If he is killed, it will be a promise from Allah that He admits him into Paradise. If he drowns, it will be a promise from Allah that He admits him into Paradise. If the animal breaks his neck, it will be a promise from Allah that He admits him into Paradise.” (Ahmad)

`Abdullah bin `Umar (RA)  said, "The Messenger of Allah (SAW)  used to often recite this supplication in the morning and when the night falls” O Allah! I ask You for well-being in this life and the Hereafter. O Allah! I ask You for pardon and well-being in my religion, life, family and wealth. O Allah! Cover my errors and reassure me in times of difficulty. O Allah! Protect me from before me, from behind me, from my right, from my left and from above me. I seek refuge with Your greatness from being killed from below me.'' (Ahmad)