For the sandhi in the Vedas and Aranyakas which of the following is more correct (i.e. ḥ s or ss):
रुद्रः सन्महो rudraḥ sanmaho
This example is from the Mahanarayana Upanishad section 24 (Taittiriya Aranyaka 10.24.1).
I've noticed that some books use the 1st format (Taittiriya-Aranyaka Edited by Subramania Sarma, Chennai) while others use the second (Mantra Pushpam by the Ramakrishna Math, Taittiriya Mantra Koshah by Ramakrishna Math). Do you know which is more correct according to Vedic sandhi?
Apologies if this is not the correct place to ask.