Manusmriti
द्यूतमेतत् पुरा कल्पे दृष्टं वैरकरं महत् । तस्माद् द्यूतं न सेवेत हास्यार्थमपि बुद्धिमान् ॥ २२७ ॥
In a former Kalpa this (vice of) gambling has been seen to cause great enmity; a wise man, therefore, should not practise it even for amusement.
english translation
dyUtametat purA kalpe dRSTaM vairakaraM mahat । tasmAd dyUtaM na seveta hAsyArthamapi buddhimAn ॥ 227 ॥
hk transliteration by Sanscript