- काठक-सस्वर-पाठलोपश्च शाह-शुजा-काले उप-पञ्च-शत-वर्षेभ्यः पूर्वम् एव जातो म्लेच्छोपप्लवात्।
ब्राह्मणानि
- Katha Aranyaka (almost the entire text from a solitary manuscript)
- Kathaka Upanishad, Katha-Shiksha Upanishad
वैष्णवत्वम्
shakha itself is seen to have a vaishnava leaning generally. Even its upanishad openly talks abt moksha sthaana being Vishnu’s paramapada. The only upanishad among the old 10 which openly calls the place as paramapada. Hence, in their vaidika karmas, you will find a lot of vaishnava like influences even today - since it is the nature of that shakha.