Adam Clarke, on Esth 2:22

“And Mardochai had notice of it, and immediately he told it to queen Esther: and she to the king in Mardochai’s name, who had reported the thing unto her.”

“Was known to Mordecai - Josephus says that a Jew, named Barnabasus, overheard the plot, told it to Mordecai, Mordecai to Esther, and Esther to the king, in Mordecai's name; and he was registered as the discoverer.”

Imported from an open dataset — not yet checked against the printed edition.