Tawhid, The Unity of God from the Holy Qur'an
Surah Al-Qasas, n.28
وَهُوَ اللَّهُ لَا إِلَٰهَ إِلَّا هُوَ ۖ لَهُ الْحَمْدُ فِي الْأُولَىٰ وَالْآخِرَةِ ۖ وَلَهُ الْحُكْمُ وَإِلَيْهِ تُرْجَعُونَ
And He is Allah, there is no god but He! All praise is due to Him in this (life) and the hereafter, and His is the judgment, and to Him you shall be brought back (28:70)
قُلْ أَرَأَيْتُمْ إِنْ جَعَلَ اللَّهُ عَلَيْكُمُ اللَّيْلَ سَرْمَدًا إِلَىٰ يَوْمِ الْقِيَامَةِ مَنْ إِلَٰهٌ غَيْرُ اللَّهِ يَأْتِيكُمْ بِضِيَاءٍ ۖ أَفَلَا تَسْمَعُونَ
Say: Tell me, if Allah were to make the night to continue incessantly on you till the day of resurrection, who is the god besides Allah that could bring you light? Do you not then hear? (28:71)
قُلْ أَرَأَيْتُمْ إِنْ جَعَلَ اللَّهُ عَلَيْكُمُ النَّهَارَ سَرْمَدًا إِلَىٰ يَوْمِ الْقِيَامَةِ مَنْ إِلَٰهٌ غَيْرُ اللَّهِ يَأْتِيكُمْ بِلَيْلٍ تَسْكُنُونَ فِيهِ ۖ أَفَلَا تُبْصِرُونَ
Tell me, if Allah were to make the day to continue incessantly on you till the day of resurrection, who is the god besides Allah that could bring you the night in which you take rest? Do you not then see? (28:72)
وَمِنْ رَحْمَتِهِ جَعَلَ لَكُمُ اللَّيْلَ وَالنَّهَارَ لِتَسْكُنُوا فِيهِ وَلِتَبْتَغُوا مِنْ فَضْلِهِ وَلَعَلَّكُمْ تَشْكُرُونَ
And out of His mercy He has made for you the night and the day, that you may rest therein, and that you may seek of His grace, and that you may give thanks (28:73)
وَيَوْمَ يُنَادِيهِمْ فَيَقُولُ أَيْنَ شُرَكَائِيَ الَّذِينَ كُنْتُمْ تَزْعُمُونَ
And on the day when He shall call them and say: Where are those whom you deemed to be My associates? (28:74)