English translation
5976. Narrated Abū Bakra رضي الله عنه : Allāh's Messenger ﷺ said thrice, "Shall I not inform you of the biggest of the great sins?" We said, "Yes, O Allāh's Messenger." He said, "To join partners in worship with Allāh(1) and to be undutiful to one's parents." The Prophet ﷺ sat up after he had been reclining and added, "And I warn you against giving lying speech and a false witness; I warn you against giving a lying speech (forged statement) and a false witness." The Prophet ﷺ kept on saying that warning till we thought that he would not stop.
