In Jainism, "Chaud Purav no Shaar" (ચૌદ પુરવનો સાર) refers to the essence or summary (shaar) of the "Chaud Purav" (Fourteen Purvas), which are ancient Jain scriptures. The Purvas were part of the original Jain canon and are believed to contain profound knowledge on philosophy, conduct, cosmology, and other spiritual matters. However, the Purvas are considered lost in the current era, and only some summaries or references remain in later Jain texts.

The "Chaud Purav no Shaar" encapsulates the core teachings or key points from these fourteen sacred texts. Jain acharyas and scholars have, over time, presented the essence of these teachings in concise forms for study and reflection. The summaries usually emphasize the path of liberation (moksha), right knowledge (samyak jnana), right faith (samyak darshan), and right conduct (samyak charitra), as well as deep insights into karma, the nature of the soul (jiva), and the universe.

Some Jain prayers, such as the "Chaud Purav no Shaar" composed in Gujarati or Prakrit, are recited as a mark of reverence to the depth of Jain wisdom and to cultivate spiritual understanding. The recitation serves as a reminder of the importance of the original Purvas, even though the actual texts are not available now.

If you are seeking the actual verses or a written version of "Chaud Purav no Shaar," it’s best to refer to Jain prayer books or consult with a Jain scholar or temple, as the wording can vary among different sects and regions.