Origine: Fulani, West Africa
Source: Fulani/Fulbe oral-tradition proverb, documented on the African Manners blog's Fulani proverbs page (africanmanners.wordpress.com, 2012), which gives it as a light-hearted retort to an outsider told "you have become a Fulani". Earlier recorded here as documented in Wikipedia's "Fulani proverbs"; that page does not contain it.
Le sens donné ici est notre propre lecture. D’autres interprétations existent.