The Three Categories of Tawheed was not something invented by Shaykh al-Islam Ibn Taymiyyah رحمه الله Ustadh Abdurrahman Hassan here destroys this doubt often brought by Ahlul Bidah. There are so many more scholars who mentioned it that aren’t named in this video

Uniting Muslims (Article 2) "إِنَّمَا الْمُؤْمِنُونَ إِخْوَةٌ فَأَصْلِحُوا بَيْنَ أَخَوَيْكُمْ ۚ وَاتَّقُوا اللَّهَ لَعَلَّكُمْ ترْحَمُون" سورة الحجرات "The believers are nothing else than brothers (in Islam). So make reconciliation between your brothers.." (Qur'an 49;10)

Strong Arguments Against The Ahmadiyyah Sect. The Ahmadiyya sect falsely believe that Mirza Ghulam Ahmad (1835-1908) is a messenger sent by Allah (SWT). This erroneous belief strongly contradicts the Qur'an and authentic prophetic narrations due to following reasons ;

1. Allah made it unequivocally clear in the qur'an that prophet Muhammad (SAW) is the last of prophets. "Muhammad is not the father of [any] one of your men, but [he is] the Messenger of Allah and last of the prophets. And ever is Allah, of all things, Knowing. (Qur'an 33 : 40)

2. The prophet (SAW) said in an authentic hadith reported by Abu hurairah (RA) "I have been given preference over the prophets in six ways....and the line of prophets is closed with me." {Sahih Bukhari (7301)} This Hadith debunks any prophesy after prophet Muh'd (SAW).

A basic islamic concept.

Alhamdulillah for Islam