﴿ لَهُۥ مَا فِى ٱلسَّمَٰوَٰتِ وَمَا فِى ٱلْأَرْضِ وَمَا بَيْنَهُمَا وَمَا تَحْتَ ٱلثَّرَىٰ ﴾

“Unto Him belongs all that is in the heavens and all that is on earth, as well as all that is between them and all that is beneath the sod.”

to Him belongs whatever is in the heavens and whatever is in the earth and whatever is between them of creatures and whatever is beneath the soil al-tharā is moist earth meaning whatever is beneath the seven earths since these lie beneath it.