I have question regarding fatiha. We say fatiha after joint prayers to our forefathers and others but we don’t offer fatiha directly to Imam Hussain as or any other Imams like we dont say lets together offer fatiha on soul of Imam Hussain as or any other imam. Can we say like that why or why not?
In our Imambarghas there we have made many replicas. We usually come to visit there and offer fatiha to replicas. Whom are we offering fatiha near replication?

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We can say fateha and send sawab of it to our Imams too. As we reading Quran for their isale sawab.
Fateha near replication is also for our Imams and Ahlebait.