What is the ruling on a wife refusing to return with her husband to another African country, desiring instead to settle in her home country, knowing that she suffered difficult living and health conditions in a previous African country, and that the husband has an attractive job opportunity there, making it difficult for him to settle in his home country?

The default is that the wife resides where her husband resides, and she may not refuse to move with him unless there is a legitimate شرعي reason. If the wife wishes for her husband to stay and not travel, she should try to persuade him and reach an understanding with him. If they disagree, it is best to refer the matter to the judiciary to consider the potential harm from travel, assess this harm, and rule accordingly, while taking into account the welfare and absence of harm to the wife, custom, necessity, the nature of the husband's work, and that the dwelling to which they wish to move meets the legitimate شرعي conditions.