Clarification on a different notion of Prince Rahula's parentage said to be in Mahayana buddhism

If we refer to Buddhist literature there are several versions of the same story. It differs between the branches Theravada and Mahayana and even within one branch the interpretation varies. Recently I read about quite a controversial notion of Prince Rahula's (Prince Siddhartha and Princess Yashodhara's son) that was said to be a belief in Mahayana Buddhist philosophy. The story says that > "Princess Yashodhara had an affair with Prince Siddhartha's charioteer > Channa and Prince Rahula is the son of Channa" I googled about this and could not find any references. Can someone clarify this and if it's an accepted belief can you please provide a reference?