Abu Hurayra (radiyAllaahu ‘anhu) reported that the Prophet (sallAllaahu ‘alaihi wa sallam) said, “Disgrace! Disgrace! Disgrace!” They said, “Messenger of Allah, who?” He said,► “The one who fails his parents or one of them when they are old will enter the Fire.” [Bukhari; Adab Al-Mufrad, 10 #21]