Hadiths About Hands, Henna, and Rings

Someone asked for the proof that it is unnecessary to cover the hands qith gloves when wearing rings or having henna on them (so long as you intention in doing so is not to differentiate yourself in social rank or draw mens' attention to yourself):

Narrated Aisha, Ummul Mu'minin: “A woman made a sign from behind a curtain to indicate that she had a letter for the Apostle of Allah (peace_be_upon_him). The Prophet (peace_be_upon_him) closed his hand, saying: I do not know this is a man's or a woman's hand. She said: No, a woman. He said: If you were a woman, you would make a difference to your nails, meaning with henna”. Here the Mufasereen of hadith have explained that the hadith where women came up to Rasulullah (peace be upon him) face to face were before the ayah "And when you ask (his wives) for anything you want, ask them from behind a screen, that is purer for your hearts and for their hearts." (Surah Al­-Ahzab ayah # 53).[Abu Dawood Book 33, Hadith # 4154 Agreed upon by Nasai]

Aisha (Radhiallaahu Ánha) : Stated that in verse 30 and 31 of Surah An Nur "What has been allowed to be shown is the hands, bangles and rings but the face must be covered.
(Quoted by Shaikh Abdul A'la Maududi in the book Purdah P# 195 and in his Tafseer of Quran under the tafseer of Surah An Nur)