A man urges people to the principle: We agree on what we agree upon, and we excuse one another in what we differ on!

Question:
May Allah reward you. This man calls in gatherings to a principle and urges people to it, which is: We agree on what we agree upon, and we excuse one another in what we differ on. He calls for it on television and in public assemblies. In fact, he denounces those who oppose it, such as Your Eminence, Shaykh 'Abd al-'Aziz ibn Baz (may Allah have mercy on him).

Answer:
This is the known principle of the Muslim Brotherhood. The one who said it was al-Banna, Hasan al-Banna, the founder of the Muslim Brotherhood group. It is an invalid principle. How can we agree on what we agree upon and excuse one another in what we differ on? If we differ in 'aqidah (creed), do we excuse one another? Do we agree with the Shi'ah, the grave-worshippers, and the Sufis? Do we tolerate any difference whatsoever? No, this is not correct. It is not correct. We do not agree on disagreement. This is also a contradiction; the principle itself is contradictory, because it is impossible to agree with disagreement. It says, "We agree," and then says, "in what we differ on." It is impossible to agree with disagreement. There must be agreement in 'aqidah, in the madhhab (school of thought), and in conduct.
In the methodology, we do not agree while we are different. No, we never do. Yes. This is their principle, the one they keep repeating and call the golden rule. The shaykhs have responded to it and explained its flaw and invalidity. Yes.