Sahih Muslim | Book 22 | Chapter 8

Narrated by Abu Tufail 'Amir b. Withila
Abu Tufail 'Amir b. Withila reported: I was in the company of 'Ali b. Abi Talib, when a person came to him, and said: What was it that Allah's Apostle (may peace be upon him) told you in secret? Thereupon he (Hadrat 'Ali) was enraged and said: Allah's Apostle (may peace be upon him) did not tell me anything in secret that he hid from people, except that he told me four things. He said: Commander of Faithful, what are these? He said: Allah cursed him who cursed his father; Allah cursed him who sacrificed for anyone besides Allah; and Allah cursed him who accommodates an innovator (in religion) ; and Allah cursed him who changed the minarets (the boundary lines) of the land.

Narrated by Abu Tufail
Abu Tufail reported: We said to 'Ali b. Abi Talib: Inform us about something which Allah's Messenger (may peace be upon him) told you in secret, whereupon he said: He told me nothing in secret which he bid from people, but I heard him say: Allah cursed him who sacrificed for anyone besides Allah; and cursed him who accommodated an innovator; and Allah cursed him who cursed his parents and Allah cursed him who changed the boundary lines (of the land possessed by him).

Narrated by Abu Tufail
Abu Tufail reported: 'Ali was asked whether Allah's Messenger (may peace be upon him) had showed special favour (by disclosing to him) a thing (which he kept secret from others). Thereupon he said: Allah's Messenger (may peace be upon him) singled us not

for (disclosing to us) anything (secret) which he did not make public, (but those few things) which lie in the sheath of my sword. He drew out the written document contained in it and on that (it was mentioned): Allah cursed him who sacrificed for anyone else besides Allah ; and Allah cursed him who stole the signposts (demarcating the boundary lines of the) land; and Allah cursed him who cursed his father; and Allah cursed him who accommodated an innovator (in religion).