Question
Who wrote or composed (put together) the Puranas?
Answer
I googled and I got this:
अष्टादशपुराणानां सारं व्यासेन कीर्तितम् | परोपकार: पुण्याय पापाय परपीडनम् ||
हिंदी अनुवाद: कीर्तिस्वरूप अठारह पुराणों के सार के रूप में महर्षि व्यास ने सिर्फ दो बातें कहीं !! दूसरो का उपकार करने से पुण्य होता है और दुःख देने से पाप । एक प्रचलित कहावत भी है -परहित सरिस धरम नहि भाई, परपीड़ा सम नहि अधिकाई ।
English Translation: Amidst all the 18 Puranas, know only two gospels of Maharshi Vyas to be true, that doing good to others conduces to merit and doing harm to them leads to Sin.
So Maharshi Vyasa wrote the Puranas according to above shloka. But I didn't find which of our scriptures mention this shloka.
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