We know from the above discussion that to play with articles used in gambling even without betting is Harām.
To sit and watch the game is also Harām. The practice of Nahy anil Munkar makes it obligatory on us to leave the place where people are gambling. It is recommended (mustahab) that if perchance our eyes fall upon an article of gambling, we should remember Imam Husain (a.s.) and curse Yazid (l.a.).
Fazl Ibn Shazān reports from Imam ‘Ali ar-Riďa (a.s.), “At the time the blessed head of Husain Ibn ‘Ali (a.s.) was carried into Shām, Yazid (l.a.) started to dine and drink barley wine (similar to modern day ‘beer’) with his associates. After the meal, Yazid (l.a.) ordered the blessed head to be kept in a salver and placed at the foot of his throne. A chessboard was spread out and the accursed Yazid sat down to play chess. During the game, he ridiculed Imam Husain (a.s.), his father (a.s.) and grandfather (S). Whenever he won a game, he used to take hold of the barley wine and drink Three goblets. Then he used to pour the remaining wine in the salver upon the head of Imam Husain (a.s.).”
Hazrat Imam ‘Ali ar-Riďa (a.s.) then continues, “Whoever is our Shia must abstain from barley wine and chess. One who sees barley wine or chess must remember Imam Husain (a.s.) and invoke curse upon Yazid and the progeny of Yazid. If a Shia does this, Allah the Almighty will forgive all his sins even if they are more numerous than the stars.” ( Uyoon e Akhbar e Reza)