The Dangers of Pride
Salamah bin Al-Akwa` (radi Allahu anhu) reported: A man ate in the presence of The Messenger of Allah (sal Allahu alaihi wa sallam) with his left hand. He (sal Allahu alaihi wa sallam) said, “Eat with your right hand.” He (the man) said: “I cannot.” Thereupon He (sal Allahu alaihi wa sallam) said, “May you never be able to do that.” It was pride that prevented him from doing it, and he could not raise it (the right hand) up to his mouth afterwards.
Allah says (interpretation of the meaning):
“And walk not on earth with conceit and arrogance.” (Israa 17:37)
This Hadith informs us of the importance of observance of the Sunnah and the danger of having pride and the harm that pride causes the individual.
And Allah knows best!