The followers of the madhhabs are not all the same. Some of them are mujtahids within their madhhab, and some are followers (muqallids) who do not go against their madhhabs in any regard.

Al-Buwayti, al-Muzani, al-Nawawi and Ibn Hajr were followers of Imam al-Shaafa’i, but they were also mujtahids in their own right and differed with their imam when they had evidence. Similarly Ibn ‘Abd al-Barr was a Maaliki but he differed with Maalik if the correct view was held by someone else. The same may be said of the Hanafi imams such as Abu Yoosuf and Muhammad al-Shaybaani, and the Hanbali imams such as Ibn Qudaamah, Ibn Muflih and others.

The fact that a student studied with a madhhab does not mean that he cannot go beyond it if he finds sound evidence elsewhere; the only one who stubbornly clings to a particular madhhab (regardless of the evidence) is one who lacking in religious commitment and intellect, or he is doing that because of partisan attachment to his madhhab.

The advice of the leading imams is that students should acquire knowledge from where they acquired it, and they should ignore the words of their imams if they go against the hadeeth of the Prophet SAWS (peace and blessings of Allaah be upon him).

Abu Haneefah said: “This is my opinion, but if there comes someone whose opinion is better than mine, then accept that.” Maalik said: “I am only human, I may be right or I may be wrong, so measure my words by the Qur’aan and Sunnah.” Al-Shaafa’i said: “If the hadeeth is saheeh, then ignore my words. If you see well established evidence, then this is my view.” Imam Ahmad said: “Do not follow me blindly, and do not follow Maalik or al-Shaafa’i or al-Thawri blindly. Learn as we have learned.” And he said, “Do not follow men blindly with regard to your religion, for they can never be safe from error.”

No one has the right to follow an imam blindly and never accept anything but his worlds. Rather what he must do is accept that which is in accordance with the truth, whether it is from his imam or anyone else.