What the Quran says
The Quran refers several times to “seven heavens”, using the Arabic phrase sab’ samawat. In the second chapter it says that God made the earth for people and then arranged the heavens as seven. Another passage, in the chapter on sovereignty, speaks of God as the one who created seven heavens in layers, one above another, and invites the reader to look for any flaw. A third, in the chapter on divorce, adds that of the earth there is “the like of them”, a phrase that later writers read as a reference to seven earths, though the meaning is debated.
That is almost all the Quran says directly. It gives the number and the idea of layers, but no names for the levels, no list of what lies in each, and no measurements. Most of the detail found in later Muslim writing comes from other sources.
The ascent of the Prophet
The main source for later description is the tradition of the Prophet’s night journey and ascent, called the isra and miraj. In the standard accounts reported in the hadith collections, the Prophet is taken from Mecca to Jerusalem and then up through the heavens, accompanied by the angel Gabriel. At each level the gate is opened after Gabriel gives his name, and the Prophet meets an earlier prophet.
The usual order in the best-known reports is this: Adam in the first heaven, Jesus and John in the second, Joseph in the third, Idris in the fourth, Aaron in the fifth, Moses in the sixth and Abraham in the seventh. Details vary between versions of the report, and it is worth treating the list as the most common form and not as a single fixed text.
Beyond the seventh heaven, the accounts describe a lote tree at the limit, called Sidrat al-Muntaha, and a house visited by angels, called al-Bayt al-Ma’mur. The Quran has its own short references to the lote tree in a passage about a vision of the Prophet, and the later accounts expanded on it. This is also the setting for the tradition that the daily prayers, one of the Five Pillars, were reduced to five.
Commentary and cosmology
Commentators on the Quran mostly took the seven heavens as real levels above the earth, while differing about what they were made of and how far apart they stood. Some medieval accounts gave each heaven its own material or colour or its own angels. These descriptions are found in popular books and in some of the commentaries, and the sources vary widely, so any single scheme is best attributed to the particular writer who set it out.
Scholars also asked how the Quranic picture related to the astronomy of the time. Medieval Muslim astronomers worked largely with the model of nested spheres inherited from Greek science, in which the Moon, Mercury, Venus, the Sun, Mars, Jupiter and Saturn each had a sphere, followed by the sphere of the fixed stars. Some writers linked the seven heavens to the seven planetary spheres, while others kept the two separate, treating the Quranic language as a matter of revelation and the spheres as a human scientific model. Both positions are found in the tradition.
Older seven-layered heavens
The idea of seven heavens was not new in the seventh century. In the ancient Near East, seven wandering bodies were recognised in the sky, the Sun, Moon and five visible planets, and the broader pattern of seven in antiquity gave the number a strong hold on thinking about the cosmos. Some Jewish texts, including parts of the rabbinic literature, speak of seven heavens with names of their own, and some Jewish and Christian apocalyptic writings describe ascents through several heavens. The seven-day week is also often linked to the same planetary lore.
Historians discuss whether the Islamic picture draws directly on these traditions, shares a common background with them, or arose independently. The sources do not settle it. It is fair to say that the number seven fits a world in which it was already widely used, and that Muslim tradition gave it its own form.
Related sevens
Some other groups of seven appear in the Quran and the traditions. The Quran mentions seven gates of Hell in one passage. It also uses the phrase “seven oft-repeated verses”, which is usually taken to refer to the opening chapter of the Quran, as another seven. There is no suggestion in the sources that these sevens are linked by a common formula, and commentators vary on what they signify.
Reading the number
For believers, the seven heavens are part of an account of creation that points to God’s power and order. For historians, they are an example of how one number can run through a religious text, a body of commentary and a shared background of ancient cosmology. The number is not given a magical sense in mainstream Muslim teaching, and the stories about the heavens are devotional and theological and not astronomical.
A reader should keep three layers apart: what the Quran states, what the hadith accounts of the ascent add, and what later scholars and storytellers developed. Mixing them leads to the impression that the tradition is more uniform than it is.