Verš 41:12

A ustanovil je jako sedm nebes ve dvou dnech a každému nebi pořádek jeho vnukl. A nebe nejbližší svítilnami a ochranou ozdobil. A takové bylo předurčení mocného, vševědoucího.“

Tafsir al-Jalalayn

Then He ordained them (the [suffixed] pronoun refers back to al-samā’, ‘the heaven’, because it [al-samā’] actually denotes that plural [sense] to which it will lead [in the following clause), in other words, He made them to be, seven heavens in two days — Thursday and Friday. He completed them in the last hour thereof, in which He created Adam — which is why He does not say sawā’an, ‘evenly’ here [as He did earlier]; what is said here concords with those verse in which it is stated that the heavens and the earth were created in six days; and in each heaven He revealed its commandment’, that to which He commanded those in it [to follow], in the way of obedience and worship. And We adorned the lowest heaven with lamps, with stars, and [this was also] to guard them (hifzan is in the accusative because of its implicit verbal sense, in other words, ‘We guarded it against the devils lest they try to listen therein [to the angels] by stealth with meteors’). That is the ordaining of the Mighty, in His kingdom, the Knower, of His creatures.