Tawhid, The Unity of God from the Holy Qur'an

Surah Al-Ankabut, n.29

وَلَئِنْ سَأَلْتَهُمْ مَنْ خَلَقَ السَّمَاوَاتِ وَالْأَرْضَ وَسَخَّرَ الشَّمْسَ وَالْقَمَرَ لَيَقُولُنَّ اللَّهُ ۖ فَأَنَّىٰ يُؤْفَكُونَ

And if you ask them, Who created the heavens and the earth and made the sun and the moon subservient, they will certainly say, Allah. Whence are they then turned away? (29:61)

وَلَئِنْ سَأَلْتَهُمْ مَنْ نَزَّلَ مِنَ السَّمَاءِ مَاءً فَأَحْيَا بِهِ الْأَرْضَ مِنْ بَعْدِ مَوْتِهَا لَيَقُولُنَّ اللَّهُ ۚ قُلِ الْحَمْدُ لِلَّهِ ۚ بَلْ أَكْثَرُهُمْ لَا يَعْقِلُونَ

And if you ask them Who is it that sends down water from the clouds, then gives life to the earth with it after its death, they will certainly say, Allah. Say: All praise is due to Allah. Nay, most of them do not understand. (29:63)