Is zakah permissible for a student of knowledge who devotes himself entirely to it?

Question:
May Allah reward you, Honorable Shaykh. This questioner says: A man holds a university degree and works with it. He lives in a house owned by his father, and he is also married. He wants to devote himself entirely to seeking knowledge, and he has no source of income, neither he nor his wife. The question is: Is zakah permissible for him? And if it is not permissible, why do you advise him? Knowing that he strongly desires to devote himself to seeking knowledge, so that knowledge becomes his primary concern. This is his purpose, and it is correct: devoting himself to seeking knowledge. So he devotes himself to seeking knowledge and is helped from zakah.

Answer:
He is helped from zakah because his devotion is for a correct purpose, indeed a good purpose, which is seeking knowledge. So if he devotes himself, there is nothing wrong with him taking from zakah what helps him in seeking knowledge.