In Tamil literature Skanda reference is in Thirumurukatruppadai by Nakkerar.T
When you look at closely, it boils down to one testimony, by word, preferably contemporary in nature.
Even here if there are more versions, the record becomes questionable
It is interesting to note that Lord Dhandayudhapani is placed before this Pillar every year during Panguni Uthiram Festival.
And the total of the numbers in any direction is Six.
The Sadakshara,the number of Subrahmanya,Sa Ra Va Na Bha Va.
Because Kaarthikeya, called Murugan in Tamil,taught the precept of the Veda to Shiva, Guru of Gurus, a realized souls Brahmin, Murugan, meaning most beautiful, came to be known as Subrahmanya, The best among Brahmins, those who realized brahman, the Reality.