We have already posted shia hadith that visiting of grave of Husayn is equal to visiting Allah on His Throne.

Now we would like to present to you quote from shia author Saeed Ali al-Wahid al-Abtahi al-Isfahani.

In his book “Ziyaratul Ashura wal Atharuha Ajabiyah” (Darul Muhsin, Egypt, p 11), he said:

Translation:

Yes,  this how it is prescribed to be visitation of imam al-Husayn (alaihi salam), which as it come from them (alaihuma salam) IS EQUAL TO VISITING ALLAH ON HIS THRONE.