On board footage suggested that the Briton, who was about to begin a hot lap, may have impeded Romain Grosjean who was just about to finish one.
Feeling the Mercedes driver had cost him the chance of a better time, the Frenchman asked "what was that?" before suggesting the German team invest in a better GPS system in order that they better position their driver.
Speaking post-session, Hamilton insisted he had not impeded Grosjean, a view clearly shared by the Stewards.
"The Stewards examined video and telemetry evidence and concluded that while Grosjean may potentially have been affected by the presence of Hamilton at Turn 16, he was not impeded," said the Stewards in their report.