Sunan At-Tirmidhi

Narrated 'Abdur-Rahman bin Abi Bakrah:from his father that the Messenger of Allah (ﷺ) said: ""Shall I not narrate to you about the worst of the major sins?"" They said: ""Of course O Messenger of Allah!"" He said: ""Associating others with Allah and disobeying the parents."" He said: ""And he sat reclining and said: 'The false testimony.' Or he said: 'The false statement.'"" He said: ""So the Messenger of Allah (ﷺ) would not stop saying it until we said (to ourselves): 'If he would only stop