Rational contemplation of creation (tafakkur)

قُلْ سِيرُوا۟ فِى ٱلْأَرْضِ فَٱنظُرُوا۟ كَيْفَ بَدَأَ ٱلْخَلْقَ ۚ ثُمَّ ٱللَّهُ يُنشِئُ ٱلنَّشْأَةَ ٱلْـَٔاخِرَةَ ۚ إِنَّ ٱللَّهَ عَلَىٰ كُلِّ شَىْءٍ قَدِيرٌ

Say, [O Muḥammad], "Travel through the land and observe how He began creation. Then Allāh will produce the final creation [i.e., development]. Indeed Allāh, over all things, is competent."