In popular Buddhist teaching, we often hear of collective kamma/karma or shared karma which is postulated as common deed(s) done by a group of people and its result is experienced together by the people. The best example of this collective kamma is the famous Sakyan genocide by Vidudabba, son of King Pasenadi Kosala. Although this is from commentary and commentary doesn’t used the term, but it is said that this genocide is caused by a common deed done by Sakyan people together in the remote past.
Bhante Dhammika in his blog has investigated that the notion of collective kamma is not found from early suttas, but the notion had been used in Vasubhandu’s Abhidharmakosabhasya:
Even though Bhante Dhammika’s explanation is reasonable, but I think the working of kamma is unthinkable and perhaps there is something called collective or shared karma although it is not found in the early suttas.
What is your opinion about this, friends?