Yesterday, a friend came asking why Imam Ali asw didn’t come at first to open the door instead of Fatmah Azahra? He said Ali was a coward because of that. I kept silent because I didn’t know what to respond. Is there an answers to this ? thank you

As for why Fatima (sa) did not open the door:

As for the question about Fatima, i have something i would like you to read but I am unable to upload the document here. Its from Sayed Jafar Murtadha Amili. Do you have an email that i could send you the document, if you dont mind.