Abu Bakra reported that the Messenger of Allah (ﷺ) said, "Shall I tell you which is the worst of the major wrong actions?" "Yes, Messenger of Allah," they replied. He said, "Associating something else with Allah and disobeying parents." He had been reclining but then he sat up and said, "and false witness." Abu Bakra said, "He continued to repeat it until I said, 'Is he never going to stop?'"
Reference: Al-Adab Al-Mufrad 15 In-book : Book 1, Hadith 15 English translation : Book 1, Hadith 15
Help us gift a modern, ad-free Islamic application for the Muslim Ummah. Your donation will be recorded as Sadaqah Jariyah in your book of deeds, In Sha Allah.