I heard the Messenger of Allah ﷺ delivering a sermon during the Farewell Pilgrimage, in which he said, "Fear Allah your Lord, pray your five daily prayers, fast your month, pay the zakat on your wealth, and obey those in authority among you, and you will enter the Paradise of your Lord."
سمعت رسول الله ﷺ يخطب في حجة الوداع فقال: اتقوا الله ربكم، وصلوا خمسكم، وصوموا شهركم، وأدوا زكاة أموالكم، وأطيعوا ذا أمركم، تدخلوا جنة ربكم.
Tirmidhi (616), Ahmad (22161), Ibn Hibban (4563) who graded it sahih, and Hakim (9/1) all narrated it, all of them through the route of Muawiya bin Salih, who said, Salim bin Amir told me, saying, I heard Abu Umama saying, then he related it. Its isnad is sahih.Tirmidhi said, "This is a hasan sahih hadith."Hakim said, "This is a sahih hadith according to the criterion of Muslim, and we do not know of any defect in it."