Surah at-Taghabun (The Deprivation) 64 : 9

Explanatory Note

It is called the Day of the Gathering because all creatures from all generations are gathered together on that day, which is also attended by the angels. Only God knows the numbers of the angels, but we may have a sense of it when we reflect on the following hadith in which Abu Dharr quotes the Prophet as saying: "I see and hear what you do not. The heavens is noisily bustling, and rightly so: there is not a four-finger width in it but occupied by an angel with his forehead placed low in prostration before God. Were you to know what I know, you would have laughed but a little and wept much, and you would not have enjoyed being in bed with women. You would have gone up the hills and mountains earnestly appealing to God. I wish I were a tree to be felled." [Related by al-Tirmidhi.] The heaven in which there is an angel in every little space of four fingers is this great expanse for which we know no limit, and in which a sun like ours appears to be no more than a fine particle floating in the air. Does this then give us an approximation for the number of angels in it? Furthermore, all these angels will form part of the assembled mass of creatures on the Day of Gathering.

It will be in front of this great assembly that the loss and gain will take place: the believers will take all happiness purely for themselves while the unbelievers will be totally deprived of it before being sent to hell. These are two greatly different lots. The sense we receive is that of a competition where the winners take all. Hence, each side wants to deprive its competitors. The believers end up winners and the unbelievers losers. 

(64:9) is the longest Ayat of this Surah with 27 words. It also contains a unique word, التَّغَابُنِ [mutual deprivation] which is mentioned only once in the Qur'an.