Wa `alaykum as-Salamu wa Rahmatullahi wa Barakatuh.

There is no such reference to such an issue in the Islamic sources. It is up to the husband and wife to make a prenuptial agreement where they could stipulate such an arrangement.

It is not advisable for a Sunni to marry a Shia person without such a prior pre-nuptial agreement to preempt any future disputes on such issues as well as other potential conflicts due to celebrations, rituals, etc

There is nothing wrong in marrying a Shia person as long such issues are sorted out in advance.

I pray to Allah to guide us to the right decisions that would bring peace, harmony, and reconciliation in our spousal relations.

Allah Almighty knows best.