The Messenger of Allah ﷺ said, "There is no servant who worships Allah without associating anything with Him, establishes the prayer, pays the zakat, and avoids the major sins, except that he enters Paradise."They asked him, "What are the major sins?"He replied, "Associating partners with Allah, fleeing from the battlefield, and killing a soul."
قال رسول الله ﷺ: ما من عبد يعبد الله لا يشرك به شيئا، ويقيم الصلاة ويؤتي الزكاة، ويجتنب الكبائر إلا دخل الجنة، فسألوه: ما الكبائر؟ فقال: الإشراك بالله، والفرار من الزحف، وقتل النفس.
Ibn Manda narrated it in al-Iman (478), from Ahmad bin Ishaq bin Ayub, who said, "Yusuf bin Yaqub narrated to us, who said, 'Muhammad bin Abu Bakr narrated to us, who said, "Fudayl bin Sulayman narrated to us, who said, 'Musa bin Uqba narrated to us,' he heard Ubaydullah bin Sulayman al-Aghar, from his father, from Abu Ayub," and he related it.I say, its chain is hasan, because Fudayl bin Sulayman is disputed, though his hadith is considered hasan. Ibn Manda said, "This chain is sahih, but they did not include it."