What is the ruling concerning a child born from a marriage where the husband's documents do not match his true tribal affiliation?

It is absolutely impermissible to claim ancestry from a tribe other than one's own, whether in official documents or otherwise. This is due to the severe warning against whoever attributes himself to other than his father, and because it involves falsification, deception, and falsehood. Marriage is not affected by changing documents; it remains valid if its pillars are fulfilled. The child born from such a marriage is attributed to his father and his true tribe.