There is no tradition to indicate this Surah's period of revelation. However the subject matter of this Surah indicates that it was revealed during the Makkan period.
- The Day of Judgement is certain, there is no escape from it.
- Allah Himself took the responsibility of preserving the Qur'an.
- The last moments of disbeliever's death.
- Take Allah's warning about the Day of Judgement seriously.
This Surah addresses the deniers of the Hereafter and replies are given to each of their doubts and objections. Strong arguments are given to prove the possibility, occurrence and necessity of the Resurrection and the Hereafter, and it also has been pointed out clearly that the actual reason of people's denying the Hereafter is not that they regard it as impossible rationally, but because their selfish motives do not allow them to affirm it.
After verse 15, the discourse is suddenly interrupted and the Prophet (pbuh) is told: "Do not move your tongue hastily to remember this Revelation. It is Our responsibility to have it remembered and read. Therefore, when We are reciting it, listen to its recital carefully. Again, it is Our responsibility to explain its meaning." Then, from verse 2O onward the same theme which was interrupted at verse 15, is resumed. This parenthetical passage, according to both the context and the traditions, has been interjected here for a reason. That is, when the Angel Gabriel was reciting this Surah to the Prophet, the Prophet, lest he should forget its words later, was repeating them at the same moment. This in fact happened at the time when the coming down and receipt of Revelation was yet a new experience for him and he was not yet fully used to receiving it calmly. There are two other instances also of this in the Qur'an. First, in Surah TuaHa, the Prophet (pbuh) was told: "And see that you do not hasten to recite the Qur'an before its revelation is completed to you." (v. 114). Then, in Surah Al-A'la, it has been said: "We shall enable you to recite, then you shall never forget." (v. 6). Later, when the Prophet became fully used to receiving the Revelation properly, there remained no need to give him such instruction. That is why, except for these three instances, there are no other instructions like this in the Qur'an.