Allah says in surah al-Nahl [16]: [ وَقَالَ اللَّهُ لَا تَتَّ | Dr Zakir Naik

Allah says in surah al-Nahl [16]:

[ وَقَالَ اللَّهُ لَا تَتَّخِذُوا إِلَٰهَيْنِ اثْنَيْنِ ۖ إِنَّمَا هُوَ إِلَٰهٌ وَاحِدٌ ۖ فَإِيَّايَ فَارْهَبُونِ ‎*‏ وَلَهُ مَا فِي السَّمَاوَاتِ وَالْأَرْضِ وَلَهُ الدِّينُ وَاصِبًا]

And Allah said: Do not take two deities. He is only one god. So fear Me alone. * And everything in the heavens and the earth belongs to Him, and He deserves ongoing worship. [51-52]

At the outset of his commentary on these ayaat, al-haafidh ibn Kathir wrote:

[يقرر تعالى أنه لا إله إلا هو ، وأنه لا ينبغي العبادة إلا له وحده لا شريك له ، فإنه مالك كل شيء وخالقه وربه ]

Allah is affirming that there is no deity worthy of worship besides Him, and that worship should not be directed to anyone besides Him alone without any partners, for He is the owner, creator and master of everything.

[Tafsir ibn Kathir 4/577]