Re: Hazrat Ameer Muawiya r.a and the Romans
An enemy of 'Ali (as) is an enemy of Allah (swt)
We read in Riyadh al Nadira Volume 3 page 111 that Rasulullah (s) declared:
"O Allah, 'Ali is my beloved friend, and my beloved friend is a beloved friend of Allah. 'Ali] Your enemy is my enemy, and my enemy is Allah's enemy. O 'Ali destroyed are those that incur your wrath".