I find myself intrigued by the idea that there are people today compelled to carry on the karmakāṇḑa rituals. 

I read a brief passage that alludes to the mīmāṃsā thought-world as providing textual evidence and injunctions for this practice of reenacting scriptural commandments, which were originally meant for a group of people in a different time and place. However, it only mentions mīmāṃsā and does not mention any specific author or text.

I would like to read this text but, as I know very little about mīmāṃsā I do not really know where to start. I thought I might find some help here in locating the passages I seek. 

Thank you for your help.