Sahih Muslim | Book 1 | Chapter 18

Narrated by Anas b. Malik
It is arrested on the authority of Anas b. Malik that the Prophet (may peace and blessings be upon him) observed: one amongst you believes (truly) till one likes for his brother or for his neighbour that which he loves for himself.

Narrated by Anas
It is narrated on the authority of Anas that the Prophet (may peace blessings be upon him) observed: By Him in whose Hand is my life, no, bondsman (truly) believes till he likes for his neighbour, or he (the Holy Prophet) said: for his brother, whatever he likes for himself.