There is no clear information about aliens in Quran or hadiths.
One can bring these ayats in counter:
قُل لَّا يَعْلَمُ مَن فِي السَّمَاوَاتِ وَالْأَرْضِ الْغَيْبَ إِلَّا اللَّهُ وَمَا يَشْعُرُونَ أَيَّانَ يُبْعَثُونَ
Say, "None in the heavens and earth knows the unseen except Allah , and they do not perceive when they will be resurrected."
Naml 65 (27/65)
وَرَبُّكَ أَعْلَمُ بِمَن فِي السَّمَاوَاتِ وَالأَرْضِ وَلَقَدْ فَضَّلْنَا بَعْضَ النَّبِيِّينَ عَلَى بَعْضٍ وَآتَيْنَا دَاوُودَ زَبُورًا
And your Lord is most knowing of whoever is in the heavens and the earth. And We have made some of the prophets exceed others [in various ways], and to David We gave the book [of Psalms].
Isra 55 (17/55)
إِن كُلُّ مَن فِي السَّمَاوَاتِ وَالْأَرْضِ إِلَّا آتِي الرَّحْمَنِ عَبْدًا
There is no one in the heavens and earth but that he comes to the Most Merciful as a servant.
Maryam 93 (19/93)
In these ayats, the bold written part in the original Arabic text, the phrase literally means
who is in the skies. The word "who" in these phrases is not the question word; it is for making relative clauses. Anyway, the word
مَن (who) is used for beings with human-level consciousness (i.e.; intelligent beings). For less intelligent beings (like animals, plants and objects),
مَا (what) is used.
However, the words
ارض (earth) and many other natural words are highly symbolic (mutashabih) words, and almost always used for symbolic expressions; they both symbolize certain something, but it is not our topic here.
If we trace the meaning of these words in the entire Quran, we see that
sky is not used for deep space where aliens would live in.
Note that, Quran also does not say that there are no aliens.
Quran is a book for:
- Showing the people the path for keeping their society in the optimum (stable) state.
- Warning the people about
sa'at (the point in which corruption of a society starts; the point of no return)
- Warning the people about The Final Day (ahirat) in which all people will revive and be asked for what they had spent their lives for.
- Being a
zikr (finding solutions to our daily life problems by using the basic current data/informations).
Talking about aliens is outside of Quran's general scope.
I don't say that Quran has no information about aliens. It just have no direct information. Directly and clearly does not mention them. No one can fully understand Quran, so I can't say that something is absolutely not mentioned in it. Maybe one day, someone can find it in Quran; who knows?
Hadiths are the outcome of the nabi Muhammad's 23 year of study and practice of Quran. They are not something too different from Quran. So, they also doesn't mention anything about aliens.