«صَحِّتْ وِلَادِ النُّدُولَهْ وِالْأَرْضِ الْمَجْهُولَهْ»

The proverb targets people whose parents are thought base and whose origins no one can name, noting with contempt that they have nonetheless come up in the world. Their low or unknown stock is the point of the jab, and its scorn for birth and lineage can give offence.

The saying attributes their advancement to luck: fortune has favoured them and carried them upward. Calling it out in these terms marks the speaker's view that birth, not their present standing, defines them, a prejudice the saying voices rather than one to endorse.

Said with scorn about people of lowly or untraceable parentage who have climbed to a better position, crediting their climb to good fortune. It fits disparaging remarks or gossip and is never praise; aimed at a specific person, it can be taken as an insult.