What is the basis for Ibn Taymiyyah's division of Tawhid into Rububiyyah (Lordship), Uluhiyyah (Divinity), and Asma wa Sifat (Names and Attributes), and how is pure Tawhid for Allah achieved?

Shaykh al-Islam Ibn Taymiyyah was not the first to divide Tawhid (monotheism) into three categories; rather, other scholars preceded him. The evidence for this division is the comprehensive study of the texts of Islamic law, as Shaykh Muhammad al-Amin al-Shinqiti explained in "Adwa' al-Bayan" that the monotheism of Allah is divided into three categories: Tawhid al-Rububiyyah (Oneness of Lordship), Tawhid al-Ibadah (Oneness of Worship), also known as al-Uluhiyyah, and Tawhid al-Asma' wa al-Sifat (Oneness of Names and Attributes). As for how to achieve pure Tawhid for Allah, Shaykh Abd al-Aziz ibn Baz clarified that it is by dedicating worship solely to Allah alone, and not supplicating, seeking aid from, relying upon, making vows to, slaughtering for, or praying to anyone other than Him, for this is the sole right of Allah.