Where can I find the "10 merits of life liberation" in the Tripitaka?

I searched, but I couldn't find, where these "10 merits of life liberation" are included in the Tripitaka. Here you can find the "10 merits" I mentioned: [Why do Buddhists practise life liberation?](http://www.purifymind.com/SB51.htm) There is also a Pali verse I found about this, but it's not in English, and also I don't study Buddhism in English normally -- so'll be thankful if anyone can point out where it is in the tripitaka. I guess it may be in the **therapadana** part, according to that Pali verse -- I can't write it clearly in English letters as I found it only in Sinhala letters, but nearly it's like this: > abhayadanan dhatwana - jaththuno bhayajjite dasanisanse anubhomi - kammanuchchawike mama