Monks’ rules and their analysis
Monks’ Training (Sekhiya) 73
‘I will not ease myself standing if not ill,’ is a training to be observed.”
One must not ease oneself standing if not ill. Whoever out of disrespect eases himself standing if not ill, there is an offence of wrong-doing.
There is no offence if it is unintentional, … if he is the first wrong-doer.