Surah Al-An'am — Ayah 75 (6:75)
وَكَذَٰلِكَ نُرِيٓ إِبۡرَٰهِيمَ مَلَكُوتَ ٱلسَّمَٰوَٰتِ وَٱلۡأَرۡضِ وَلِيَكُونَ مِنَ ٱلۡمُوقِنِينَ ٧٥
English translation (Saheeh International)
And thus did We show Abraham the realm of the heavens and the earth that he would be among the certain [in faith].
Brief commentary
In the same way I showed Abraham the misguidance of his father and his people, I also showed him the vast kingdom of the heavens and the earth, so that he could use that as an indication of Allah’s Oneness and of His being the only One deserving of worship. This also made him certain that Allah is One without any partner and that He has power over everything.