What is the opinion of our trusted scholars, such as Sheikh Al-Islam, regarding Muslim philosophers like Al-Farabi, Al-Biruni, Al-Kindi, Al-Razi, Ibn Sina, and Ibn Rushd?

Al-Farabi followed the path of his predecessors in disbelieving in Allah, His angels, His books, His messengers, and the Last Day. Al-Kindi was called "the philosopher of the Arabs," and he was accused concerning his religion, being described as stingy and lacking chivalry. Ibn Sina was declared a disbeliever by some scholars, and it was reported that he repented at the end of his life, and Allah knows best his true state. As for Al-Biruni, it is not known that he engaged in philosophy, nor has anything detrimental to his creed been reported from him, and the default for a Muslim is soundness. As for Ibn Rushd and Al-Razi, the answer regarding them has already been provided.