To Him Belongs Whatever Exists
In Ayah 13, Allah subhanahu wa ta’ala asserts His Rububiyyah by saying,
وَلَهُ مَا سَكَنَ فِى الَّيْلِ وَالنَّهَارِ وَهُوَ السَّمِيعُ الْعَلِيمُ
“And to Him belongs whatsoever exists in the night and the day, and He is the All-Hearing, the All-Knowing.”
The word sakana [سَكَنَ] is from the root letters seen-kaf-noon which carries two meanings. One meaning is “to reside” such as maskin, while the other meaning is “to be quiet or at rest” such as sakoon.
Everything that lives by the day and by the night belongs to Allah subhanahu wa ta’ala. Similarly, everything that comes to the stop belongs to Him. For example, human beings work in the day and rest at night while there are some creatures which rest in the day and work at night.
All creatures in the heavens and earth are Allah’s servants and creatures, and they are all under His authority, power and will; there is no deity worthy of worship except Him.
Allah subhanahu wa ta’ala ends the ayah by saying that He hears the statements of His servants and knows their actions, secrets and what they conceal.