Sahih Muslim Book 001, Hadith Number 0049.
Chapter : He who meets his Lord with implicit faith would enter Heaven and fire would be forbidden to harm him.
It is narrated on the authority of Aswad b. Hilal that he heard Mu'adh say this: The Messenger of Allah (may peace be upon him) called, me and I replied to him. He (the Holy Prophet) said: Do you know the right of Allah upon the people? and then followed the hadith (mentioned above).