Both of these two meanings can be combined for the...
Both of these two meanings can be combined for the commentary of the current verse, because at the threshold of the Hereafter, the stars will both lose their light, scatter and fall, and also the regularity of the Universe will be disturbed, as Sura Infitar, No. 82 verse 2 says: When the planets are scattered. In addition, Sura Mursalat, No. 77, verse 8 says: Then when the stars are extinguished. And when the mountains shall be set in motion.
And, as it was mentioned earlier, it is understood from various verses of the Qur'an that close to the time of the occurrence of the Resurrection the mountains pass through different stages: at first they move, and, in the end change into scattered dust. (More explanation is given in the commentary of Sura Nabaa, No. 78, verse 20) .
And when the pregnant camels shall be neglected The word /ishar/ is the plural form of /ishra/ and basically means 'she-camel ten months with young', which is just about to be delivered of her young. That is, in the near future it will be delivered of another camel and, therefore, will possess much milk. At the time of the revelation of these verses such a camel was considered the most valuable property to the Arabs. The term /uttilat/ is based on /ta'til/ which means 'to leave without care'.
It means that the intensity of the horror and fear, on that Day, is so much so that everyone leaves his most precious things unattended. The late Tabarsi cites in Majma'-al-Bayan that some have said it means 'cloud!' and the term /uttilat/ means that 'they are want of rain', that is, on that Day the clouds appear in the sky, but do not rain.
(The 'clouds' might be the ones which result from different gases or atomic clouds, or a mass of scattered dust produced from cleaving mountains at the threshold of the Hereafter, which contain no rain. Some have also commented that /ishar/ means 'the houses or farming lands' that at the threshold of the Hereafter will be left in suspension. However, the first commentary is the most popular. When the wild beasts shall be mustered.
There are some animals which normally live far from each other and fearing each other, flee, but the terror and the alarm of the events, prior to the Hereafter, is so great that these animals will gather together and forget every fear. It seems as if they feel safer gathered together. Consequently, a lot of commentators believe that this verse refers to the Resurrection of the wild animals and their presence in the Court of the Hereafter.