That it may sway with you, due to the dislike of it swaying with you and shaking. The swaying is that which is turned when one rides the sea.

It is said: Allah created the earth and it began to sway, so the angels said: No one can remain settled upon its surface. Then it became stable with the mountains. The angels did not know from what it was created and rivers were made in it, because 'to cast' in it means 'to make.' Do you not see His saying: 'Did We not make the earth a resting place and the mountains stakes?' And signs are the landmarks of the roads and everything by which travelers are guided, from a mountain and a water source and so on.

The intended meaning of the star is the genus, as in your saying: The dirham has increased in the hands of the people. And from Al-Suddi: It is the Pleiades, and the two stars (the Great and Little Bear), and the Daughters of the Chariot, and the Goat. Al-Hasan read: 'And by the star,' with two dammas, and with a damma and a sukoon, which is the plural of star, like 'kahran' and 'rahn,' and the sukoon is a form of easing. It is said that the waw was omitted from the stars for ease.

If you say: The saying 'And by the star they are guided' is an exception from the norms of address, where 'by the star' is placed first, and 'they' is inserted in it, as if it were said: 'And by the star especially these ones are guided.' Who is meant by 'they'? I say: It seems that he meant the Quraysh: they had guidance by the stars in their travels, and they had knowledge of it that was not similar to that of others, so gratitude was more obligatory upon them, and reflection was more necessary for them, thus they were specified.