Is it permissible to travel in pursuit of knowledge while leaving behind one's only mother in a country where there are no scholars, even though she does not object and has a brother living with his family?

The questioner must travel to seek knowledge because there are no scholars in his country, and his parents do not object to his travel, nor does he fear that they will be neglected. Some scholars have stated that seeking knowledge, even if it is a communal obligation (kifayah), if it cannot be acquired in one's own country, then there is no obedience to parents in preventing it, as long as there is no fear of their neglect.