What is the ruling on a man looking at his wife’s picture with lust?

It is permissible for a man to look at his wife's picture with desire and to enjoy her body, based on the hadith narrated by Bahz bin Hakim, from his father, from his grandfather, who said: "I said: 'O Messenger of Allah, regarding our awrahs, what can we expose and what must we conceal?' He replied: 'Guard your awrah except from your wife or what your right hand possesses.'" Narrated by Al-Tirmidhi.