Halakhah sa Genesis 30:11: Shulchan Arukh, Even HaEzer

A woman may forbid [delay] her husband from going for merchant but to a close place, so he won't avoid he period; and he won't leave but [unless] in her permission. And even if she gives him permission, he shouldn't be long, only a month out and a month in his house (Tur & the Rosh) and also she can [has to] forbid him from going from short [close by] period jobs to long [far] period jobs, like a donkey driver wishing to become a camel driver, or camel driver to become a sailor. And scholars [Talmidey Hachamim] leaving for Talmud Torah (even) without their wives permission for two and three years. And [al]so a hiker who became a scholar, his wife can't forbid (him). And if she gives him permission, a scholar can go with however-much she gives him permission (Tur in the name the Ravad)