عن أبي هريرة أن رسول الله صلى الله عليه وسلم قال: كل أمتي يدخلون الجنة إلا من أبى قالوا: يا رسول الله ومن يأبى قال: من أطاعني دخل الجنة ومن عصاني فقد أبى (صحيح البخاري رقم 7280)

Hazrat Abu Hurairah (radhiyallahu ‘anhu) reports that Rasulullah (sallallahu ‘alaihi wasallam) said, “Every person in my ummah will enter Jannah, except those who refuse.” The Sahaabah (radhiyallahu ‘anhum) asked, “O Rasul of Allah (sallallahu ‘alaihi wasallam)! Who are those who refuse?” Rasulullah (sallallahu ‘alaihi wasallam) replied, “Those who obey me (believe in me and follow my way) will enter Jannah (forever), and those who disobey me (they do not believe in me) have refused (hence they will remain in Jahannum forever).”