Ayman bin Khuraim narrated that the Prophet (s.a.w) stood to give a Khutbah and said:
"O you people False witness is tantamount to Shirk with Allah" Then the Messenger of Allah (s.a.w)recited: So shun the Rijs of the idols, and shun false speech. (ID)
English reference (ID): Vol. 4, Book 9, Hadith 2299 (ID)
Arabic reference (ID): Book 35, Hadith 2468 (ID)