16:8
وَالْخَيْلَ وَالْبِغَالَ وَالْحَمِيرَ لِتَرْكَبُوهَا وَزِينَة ً وَيَخْلُقُ مَا لاَ تَعْلَمُونَ
Wa Al-Khayla Wa Al-Bighāla Wa Al-Ĥamīra Litarkabūhā Wa Zīnatan Wa Yakhluqu Mā Lā Ta`lamūna

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And the horses and the mules and the donkeys, that you may ride them and as an adornment; and He creates what you do not know.