Sahih Bukhari Volume 009, Book 093, Hadith Number 503.

Narrated By Jabir bin 'Abdullah : When this Verse: 'Say (O Muhammad!): He has Power to send torments on you from above,' (6.65) was revealed; The Prophet said, "I take refuge with Your Face." Allah revealed: '...or from underneath your feet.' (6.65) The Prophet then said, "I seek refuge with Your Face!" Then Allah revealed: '...or confuse you in party-strife.' (6.65) Oh that, the Prophet said, "This is easier."