"Bosingwa was involved in an incident with Liverpool's Yossi Benayoun during the Premier League match at Anfield on February 1," said an FA spokesperson.
"Referee Mike Riley has informed the FA that, while he did not see the incident himself, it was seen by his assistant Mo Matadar. No action was taken against Bosingwa by the officials.
"Under the FIFA Laws of the Game, the FA is prohibited from taking disciplinary action when incidents are seen at the time by the match officials."