https://abukhadeejah.com/ahmad-an-najmees-kitaab-at-tawheed-chapter-5-the-explanation-of-tawheed-and-the-shahaadah-laa-ilaaha-illallaah/
Chapter 5: The Explanation of Tawheed and the Shahādah: Lā ilāha illallāh: Ahmad an-Najmi’s explanation of Kitāb At-Tawheed