Q. How long can a husband be away from his wife if he is travelling on business etc.? Are there any limitations in this regard?
A. If a husband intends to be away from his wife due to travelling for business etc. for any period of time less than four months, then it is advisable that he mutually agrees with his wife on the amount of time that he will be away.
In the case where he intends to be away for the period of four months or more, then he may do so only if his wife agrees to it. (Shaami 3/203)
Allah Ta’ala Knows Best
Mufti Ismaeel Bassa