Sayyiduna Ibn Abbas (may Allah be pleased with them both) said that the Messenger of Allah (peace and blessings be upon him) said: "Whoever believes in Allah and the Last Day should not enter the bathhouse without a waist-wrap; whoever believes in Allah and the Last Day should not drink wine; whoever believes in Allah and the Last Day should not sit at a table on which wine is being drunk; whoever believes in Allah and the Last Day should not be alone with a woman between whom and him there is no mahram relationship."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 11414