Q: What is
the ruling on a Muslim who adheres to just one Madh-hab (School of Jurisprudence) rejecting all others?
All praise is due to Allah Alone and peace and blessings be upon His Messenger, his family, and Companions.
If a Muslim is qualified enough to know the proofs and deduce rulings from them, it becomes obligatory for them to follow the proofs and it is not permissible for them to follow any other contradictory opinion. Adhering to a certain Madh-hab is seen in this case as abominable fanaticism. However, if a Muslim does not know the proofs or how to deduce rulings from them, it is permissible for them to follow the example of a trustworthy Imam (initiator of a School of Jurisprudence). They can apply their famous views without refusing to recognize those of other Imams or rejecting them, otherwise, this will be considered (Part No. 5; Page No. 43) fanaticism.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.