法苑珠林 36.111

36.111

爾時有一比丘。去佛不遠。立高聲作歌音誦經。佛聞不聽用此音誦經。有五過患。同外道歌音說法。一不名自持。二不稱聽眾。三諸天不悅。四語不正難解。五語不巧故義亦難解。是名五種過患。

At that time, there was a monk not far from the Buddha who stood and recited the sūtras in a loud, singing tone. When the Buddha heard it, he did not permit reciting the sūtras with this tone, for it has five faults, identical to non-Buddhists using singing tones to preach the Dharma: 1. it is not called self-control; 2. it does not suit the listeners; 3. the devas are not pleased; 4. the words are not proper and are difficult to understand; 5. because the words are unskillful, the meaning is also difficult to understand. These are called the five faults.'