It is narrated from Hazrat Abu Bakrah (may Allah be pleased with him) that once we were sitting with the Prophet (peace and blessings be upon him) when the mention of major sins began. The Prophet (peace and blessings be upon him) said: The greatest major sin is associating partners with Allah and disobedience to parents. The Prophet (peace and blessings be upon him) was reclining, then he sat up straight and said several times: false testimony, false speech. The Prophet (peace and blessings be upon him) repeated this so many times that we began to think that he would remain silent.