ما حكم رجل انتسب إلى قبيلة غير قبيلته الأصلية؟

It is not permissible for a person to change his lineage by attributing himself to another lineage, due to the corrupting consequences or loss of benefits that result from it. Imam Bukhari and Imam Muslim narrated that the Prophet (peace and blessings be upon him) said: "Whoever claims to be the son of other than his father, knowing that he is not his father, then Paradise is forbidden for him." This indicates the prohibition of disassociating oneself from one's known lineage and claiming another, and it is a grave sin due to the tremendous corrupting consequences associated with it.