Questions on the Explanation of the Book of Nullifiers of Islam

Question:
What is the ruling on the one who describes Hassan ibn Thabit (may Allah be pleased with him) as a coward?

Answer:
And this brave man who describes Hassan ibn Thabit as a coward is brave; he may well be the most cowardly of people.
Hassan ibn Thabit (may Allah be pleased with him) was a Companion of the Companions of the Messenger of Allah, and Allah praised all the Companions. Hassan ibn Thabit specifically had stances with the Messenger of Allah (peace and blessings be upon him) in defending him with his poetry and responding to the polytheists. He fights with his tongue, and fighting with the tongue is to be more eloquent than fighting with the sword.
And for this reason he said (peace and blessings be upon him): "His poetry the arrows fell in the dimness of delusion." So the one who belittles Hassan ibn Thabit and describes him as a coward is one who belittles the Companions. And the Prophet (peace and blessings be upon him) said: "Do not revile my Companions," and he is the one whose life is in my hand, if one of you spent... a share. The Messenger said to him: "Answer on my behalf, and with you is the Holy Spirit," meaning Jibril (peace be upon him).