佛說處處經 1.65

1.65

佛言：「有一比丘，坐得定意。有一優婆塞見坐處不平，牽起示其安處。優婆塞後得五百劫不得安隱。何以故？斷道念故。」佛告諸弟子：「有說經，慎莫其中斷，斷經罪重不可計。」

The Buddha said: 'There was a monk who attained mental concentration while sitting. An upāsaka, seeing that the place where he was sitting was uneven, pulled him up to show him a comfortable spot. Because of this, the upāsaka was unable to attain tranquility for five hundred kalpas. Why? Because he interrupted the monk's meditation on the Way.' The Buddha told the disciples: 'When someone is expounding a scripture, take care never to interrupt in the middle; the offense of interrupting a scripture is unreckonably grave.'