Six Days

7:54

Lo! your Lord is Allah Who created the heavens and the earth in six Days.

10:3

Lo! your Lord is Allah Who created the heavens and the earth in six Days.

11:7

And He it is Who created the heavens and the earth in six Days.

50:38

We created the heavens and the earth, and all that is between them, in six Days.

57:4

He it is Who created the heavens and the earth in six Days.

Eight Days

41:9 Say (O Muhammad, unto the idolaters): Disbelieve ye verily in Him Who created the earth in two Days, and ascribe ye unto Him rivals? He (and none else) is the Lord of the Worlds.

41:10 He placed therein firm hills rising above it, and blessed it and measured therein its sustenance in four Days, alike for (all) who ask;

41:11 Then turned He to the heaven when it was smoke, and said unto it and unto the earth: Come both of you, willingly or loth. They said: We come, obedient.

41:12 Then He ordained them seven heavens in two Days and inspired in each heaven its mandate; and we decked the nether heaven with lamps, and rendered it inviolable. That is the measuring of the Mighty, the Knower.