Did Sheikh Ibn Baz issue a fatwa permitting the combining of prayers for students studying abroad until they complete their studies?

Shaykh Ibn Baz (may Allah have mercy on him) holds the view that if a traveler intends to stay for four days or more, it is not permissible for him to combine prayers. However, if he does not intend to stay, but rather has a purpose, and once he fulfills it he will return, then he may combine prayers, even if the period is prolonged. The opinion mentioned in the question is that of Shaykh Muhammad ibn Salih al-Uthaymeen (may Allah have mercy on him).