Shaikh Rabee Bin Haadi Al-Madhali (may Allaah preserve him) said:

And (with regards to) the person with the proofs, it is obligatory to take his speech (on the grounds) of following Allaah’s legislation and His Proofs, and not (due to) the personality of that person.

[Source: (See Majmoo 9/40) 3^rd paragraph]