I told your answer to my husband about decorating the house on eid. However he wants to hear daleel from the scholars. Because he thinks it is a doubtfull matter and wants to know the daleel. If he still disagree and does not let the house be decorate for the kids, is he sinful?

Ustadh AbdulAziz al-Haqqan
There are videos about this for sheikh Aziz Farhan and others. Show them to him.