I want to know the legend of "Guanyin's broken finger turned into a white snake" If there is a teacher who knows, please tell me. thank you

Once upon a time, there was a Buddha named Guanyin Bodhisattva. One day, when the Bodhisattva cut paper for the Jade Emperor, she accidentally cut off a little finger. In a flash, the little finger shaking between heaven and earth fell into the mortal world and turned into a group of true qi. At this time, a huge white snake jumped out of it, covered in silver and phosphorus, so the white snake had deep internal force. Because of the blood relationship of Bodhisattva, she is kind-hearted, born into the world and does good everywhere. They met Xu Xian, a young drug boy, and they had a beautiful marriage. However, the host of Qingshan Temple, Fahai, thought that human beings could not be combined with nonhuman beings in his eyes, so he was imprisoned in Leifeng Tower for 500 years after catching the white snake. When the Bodhisattva learned this, he ordered the heavenly soldiers to capture Fahai, who struggled to resist, but did not escape the capture of Erlang God and Nezha, and was detained in Fengshen Temple.

It's not easy to give points for pure manual code words, is it?