The ruling on a man being absent from his family for a long period

The brother: Ahmad Muhammad Ahmad from the Arab Republic of Egypt, working in the Jala area on the road to the Hijaz, asks about a man being absent from his wife. Is there a specific duration? And what do you advise those who are absent from their wives for more than a year?
Answer: There is no known duration for absence, and the Lawgiver (peace and blessings be upon him) did not specify a known duration for a man’s absence from his wife, as far as we know. It was reported from 'Umar ibn al-Khattab (may Allah be pleased with him) that he set a limit of six months for some soldiers, after which they would return to their wives, and this was from his independent legal reasoning regarding the raiders.
So if a man stays away from his wife for six months in pursuit of livelihood or in pursuit of knowledge, then returns to them and visits them for a period of time, then returns to his work, this is good, if Allah wills, and it follows the example of the Commander of the Faithful, 'Umar (may Allah be pleased with him) , and it shows care for the family. However, this is not suitable for every time. The need may be urgent for a period shorter than this. A person should look at what is best and reflect. Perhaps his wife has no one to take care of her affairs, or perhaps he fears for her from trial and discord. He should not stay away from her for six months or five months, but rather he should check on her from time to time, every month or two months or so, or move her with him if he is able to do so. For time has changed and the era has changed with the change of its people, so few are the countries today where one is safe from trial and discord for a woman.
So the conclusion is that the woman is in danger due to the change of circumstances, the abundance of evils, and the abundance of people of sins and those who covet women, except whom your Lord has mercy upon. The believer should strive to move his wife with him if he is absent, or reduce the absence so that the period is short, until he returns to his family, checks on their conditions, and satisfies his desire with his family, then returns to the need that compels him.
And the point of all this is: caring for the family and striving to attend to their affairs and matters, so that the devils do not snatch them away, and so that a trial does not occur whose consequence is divorce and separation. Yes.