When Scholars Err, By Ibn Al-Qayyim
Ibn al-Qayyim (may Allah have mercy on him) said:
“The one who has knowledge of Islam and experience of life will know for certain that the prominent man who bas served Islam and done righteous deeds, who holds a prominent position in Islam and among the people of Islam, may slip and make mistakes, but he may be excused for his mistake; indeed, he may be rewarded for his efforts to make the right decision.
Therefore, it is not permissible to follow him in that mistake; at the same time, it is not permissible to weaken his position and status in the hearts of the Muslims.”
[A’laam Al-Muwaqqi’een, 3/283]