In Jainism, “Śāsan Devī” (शासन देवी) means the protective goddess (adhishthāyikā devī) of a Tirthankar’s śāsan (religious order).

There is not just one fixed “Shashan Devi stavan”, but many different stavans in praise of different Śāsan Devīs, for example:

• Chakreshvari Devī – Śāsan Devī of Bhagwan Ṛishabhdev
• Ambikā Devī – Śāsan Devī of Bhagwan Neminath
• Padmāvatī Devī – Śāsan Devī of Bhagwan Pārshvanath

Because of this, different Jain sampradāyas and regions have different popular stavans:

• Some temples sing a stavan only for one specific Devī (e.g. only Chakreshvari Devī).
• Some sing general “Jin–śāsan” stavans like “Jinvar tāru śāsan ā jagmā chhe mahān…” which praise the entire Jain śāsan (not just one Devī).

I do not want to guess a specific stavan text and give you wrong words, so I will not write full lyrics here. For authentic stavans with correct wording, you can browse the Jain stavan section here: “Jain stavan” collection

If you want:

• a particular Śāsan Devī (for example: Chakreshvari, Padmāvatī, Ambikā etc.), or
• you remember one starting line of the stavan,

then tell me the Devi’s name or the first line, and I can explain the meaning (arth) of that specific stavan in simple Jain terms (Digambar / Shvetambar differences, if any).