A person asked Imam Sadeq (AS):

Some of my relations have different thoughts and ideology to me. Do they have any right on me? Imam (AS) replied: Yes, nothing cuts the right of kinship; if they think like you and have the same ideology, they have two rights on you; one is the right of kinship and the second the right of Islam and being Muslim [1]. It is also narrated from Imam Ali (AS) who said: Have connection with your relatives and socialize with them, even if they cut ties with you [2].

[1] Al-Kafi, Vol. 2, Page 157.

[2] Amaali, Sheikh Toosi, Page 208.

Source: en.shafaqna.com