[ALLAH’S Quran – 49:15]Indeed, true believers are those who have solemnly believed in Allah and His Messenger…..”

The Prophet (Peace Be Upon Him) has said :
[Muslim, Book #001, Hadith #0043] “It is narrated on the authority of Ubadah b. Samit that the Messenger of Allah (may peace be upon him) observed: He who said:” There is no god but Allah, He is One and There is no associate with Him, that Muhammad is his servant and His Messenger, that Christ is servant and the son of His slave-girl and he (Christ) His word which He communicated to Mary and is His Spirit, that Paradise is a fact and Hell is a fact,”Allah would make him (he who affirms these truths enter Paradise through any one of its eight doors which he would like.”

[Muslim, Book #001, Hadith #0045] “It is narrated on the authority of Sunabihi…………….I heard the Messenger of Allah (may peace be upon him) say: He who testifies that there is no god but Allah and that Muhammad is the messenger of Allah, Allah would prohibit the fire of hell for him.

[Muslim, Book #001, Hadith #0051] “It is reported on the authority of Anas b. Malik that the Prophet of Allah (may peace and blessings be upon him) addressed Mu’adh b. Jabal as he was riding behind him to which he replied: At thy beck and call, and at thy pleasure, Messenger of Allah. He again called out: Mu’adh, to which he (again) replied: At thy beck and call, and at thy pleasure. He (the Holy Prophet) addressed him (again): Mu’adh, to which he replied: At thy beck and call, and at thy pleasure, Messenger of Allah. Upon this he (the Holy Prophet) observed: If anyone testifies (sincerely from his heart) that There is no god but Allah, and that Muhammad is His bondsman and His Messenger, Allah immuned him from Hell.

[Bukhari, Book #55, Hadith #644] “Narrated ‘Ubada: The Prophet said, “If anyone testifies that None has the right to be worshiped but Allah Alone Who has no partners, and that Muhammad is His Slave and His Apostle, and that Jesus is Allah’s Slave and His Apostle and His Word which He bestowed on Mary and a Spirit created by Him, and that Paradise is true, and Hell is true, Allah will admit him into Paradise with the deeds which he had done even if those deeds were few.” (Junada, the sub-narrator said, ” ‘Ubada added, ‘Such a person can enter Paradise through any of its eight gates he likes.“)