Jubair bin Mut'im reported on the authority of his father that Allah's Messenger (ﷺ) said: The severer would not enter Paradise. Ibn 'Umar (RA) said that Sufyan (explained it as): One who severs the tie of kinship would not enter Paradise.
Hadith ReferenceSahih Muslim / The Book of Virtue, Enjoining Good Manners, and Joining of the Ties of Kinship / Hadith: 2556