Is it permissible to marry a European girl ostensibly, with prior agreement and understanding, in order to avert the risk of deportation and to be able to complete studies and renew residency, knowing that failure to complete studies will lead to deportation, and deportation will result in the inability to enroll in university in the home country, and being forced to join the army for 3 years, which means a lost future?

The forbidden sham marriage is one that does not adhere to the pillars and conditions of a legal Islamic marriage. It is used as a means to achieve specific interests, as the contract deviates from its legitimate purposes and includes conditions that contradict its intent. The way to obtain the interests that necessitate marriage is through a real marriage, where its pillars and conditions are met, its impediments are absent, no time limit is explicitly stated, and its purposes are not tampered with. It is forbidden to play with the limits of Allah and mock His verses.