Ziyarat Ashura is one of the most authentic Ziyarat's narrated by most authentic narrators. It was narrated from Imam Mohammad Al-Baqir (AS).
Ibn Qawlawayh narrated Ziyarat Ashura in his authentic book Kaamil al-Ziyarah, page 325 . All his narrators are authentic narrating from Imam Mohammad Al-Baqir (AS). All our prominent scholars mentioned this Ziyarat in their books.