"Shall I not inform you of the greatest of the major sins?" They said: "Of course O Messenger of Allah(s.a.w)!" He said: "Shirk with Allah disobeying parents, and false testimony." Or: "False speech" He said: "So the Messenger of Allah(s.a.w) would not stop saying it until we said ( to ourselves): 'I wish he would be quiet. "
Jami` at-Tirmidhi Book 35, Hadith 7
← Previous Hadith "O you people! False witness is tantamount to Shirk with Allah."Saying it three times, then he recited this Ayah And shun false speech Until the end of the Ayah.

Jami` at-Tirmidhi Book 35, Hadith 6 Next Hadith → "The best of people are my generation, then those who follow them,then those who follow them, then those who follow them."(He(s.a.w)said that) three times. "Then, after them a people will come who increase in fatness, loving fatness, giving testimony before they are asked for it."

Jami` at-Tirmidhi Book 35, Hadith 8