question #1 Sahih Muslim 54b, Book 1, Hadith 102 : What is the significance of belief in entering Paradise according to Islamic teachings?

Jarir reported on the authority of A’mash with this chain of transmitters that the Messenger of Allah (ﷺ) observed: By him in Whose hand is my life, you shall not enter Paradise unless you believe. The rest of the hadith is the same as narrated by Abd Mu’awiya and Waki’.