وَإِلَـٰهُكُمْ إِلَـٰهٌ وَاحِدٌ ۖ لَّا إِلَـٰهَ إِلَّا هُوَ الرَّحْمَـٰنُ الرَّحِيمُ ﴿١٦٣﴾ إِنَّ فِي خَلْقِ السَّمَاوَاتِ وَالْأَرْضِ وَاخْتِلَافِ اللَّيْلِ وَالنَّهَارِ وَالْفُلْكِ الَّتِي تَجْرِي فِي الْبَحْرِ بِمَا يَنفَعُ النَّاسَ وَمَا أَنزَلَ اللَّـهُ مِنَ السَّمَاءِ مِن مَّاءٍ فَأَحْيَا بِهِ الْأَرْضَ بَعْدَ مَوْتِهَا وَبَثَّ فِيهَا مِن كُلِّ دَابَّةٍ وَتَصْرِيفِ الرِّيَاحِ وَالسَّحَابِ الْمُسَخَّرِ بَيْنَ السَّمَاءِ وَالْأَرْضِ لَآيَاتٍ لِّقَوْمٍ يَعْقِلُونَ ﴿١٦٤﴾

Wa ilaahukum ilaahun Waahid; laaa ilaaha illaa Huwar-Rahmaanur-Raheem. Inna fee khalqis-samaawaati wal-ardi wakhtilaafil-layli wan-nahaari wal-fulkil-latee tajree fil-bahri bimaa yanfa'un-naasa wa maaa anzalallaahu minas-samaaa'i mim-maaa'in fa-ahyaa bihil-arda ba'da mawtihaa wa baththa feehaa min kulli daaabbatin wa tasreefir-riyaahi was-sahaabil-musakhkhari bainas-samaaa'i wal-ardi la-aayaatil-liqawmil-ya'qiloon.

(163) And your god is one God. There is no deity [worthy of worship] except Him, the Entirely Merciful, the Especially Merciful. (164) Indeed, in the creation of the heavens and earth, and the alternation of the night and the day, and the [great] ships which sail through the sea with that which benefits people, and what Allah has sent down from the heavens of rain, giving life thereby to the earth after its lifelessness and dispersing therein every [kind of] moving creature, and [His] directing of the winds and the clouds controlled between the heaven and the earth are signs for a people who use reason.

Reference: Surah Baqarah 2: 163-164