佛說觀佛三昧海經 4.23

4.23

「若有比丘入此定時，身如芭蕉無有堅實。出定之時，身體支節悉皆疼痺，若不服藥發狂而死，應當隨時眾藥消息。作是觀者除無數劫生死之罪，如大水流不久當得阿羅漢道。」

"If a monk enters this samādhi, his body is like a plantain tree, lacking solidity. When emerging from the samādhi, the limbs and joints of his body will all ache and go numb; if he does not take medicine, he will go mad and die. He should take measures to regulate with diverse medicines as appropriate. One who engages in this contemplation expels the sins of birth and death of countless kalpas, like a great torrent of water, and before long will attain the path of an arhat."