Allah says, (And if he had forged a false saying concerning Us,) meaning, 'if Muhammad forged something against Us, as they claim, and added or removed anything from the Message, or said anything from himself while attributing it to Us, then We would surely be swift in punishing him. And of course, Muhammad did not do any of this (as the disbelievers claimed).' Thus, Allah says, (We surely would have seized him by his right hand,) It has been said that this means, 'We would seize him by the right hand because it is more stronger in grabbing.' (And then We certainly would have cut off Al-Watin from him,) Ibn 'Abbas said, "It (Al-Watin) refers to the artery of the heart." (And indeed it (this Qur'an) will be an anguish for the disbelievers (on the Day of Resurrection).) Ibn Jarir said, "And verily this rejection will be anguish for the disbelievers on the Day of Judgement." He (Ibn Jarir) also mentioned a similar statement from Qatadah. It is possible that the meaning of the pronoun (it) may also refer to the Qur'an, in which case the verse would mean that the Qur'an and belief in it are a cause of anguish for the disbelievers. This is as Allah says, Thus have We caused it (the denial of the Qur'an) to enter the hearts of the criminals. They will not believe in it. (26:200,201) And Allah said, And a barrier will be set between them and that which they desire (34:54). Therefore, Allah says here, (And verily, it (this Qur'an) is an absolute truth with certainty.) meaning, the right and truthful news in which there is no doubt, suspicion or confusion. Then Allah says, (So glorify the Name of your Lord, the Most Great.) meaning, He Who sent down this magnificent Qur'an. This is the end of the explanation (Tafsir) of Surat Al-Haqqah. And to Allah belong all praise and blessings.