Say: O Mohammad (Salla Allahu Alaihi Wa Sallam)
Allah is One. Allah is He on Whom all depend. He does not beget and He is not begotten. And there is no one equal to Him. (Al Quran, Surah Al Ikhlas, Chapter 112: Verses 1-4)
Summarized Commentary:
This Sura deals with the Unity, Uniqueness, Purity and Supreme Authority of Allah (SWT). His being a father or son of anyone is ruled out. Allah (SWT) is the Creator, rest is creation and nothing in the creation is equal to the Creator.