Theravāda Vinayapiṭaka
Monks’ rules and their analysis
Monks’ Training (Sekhiya) 56
At that time the enlightened one, the lord was staying among the Bhaggā on Suṁsumāra Hill in the Bhesakaḷā Grove in the deer-park. Now at that time monks in the Kokanada palace threw out amidst the houses rinsings of the bowls with lumps of boiled rice. People … spread it about, saying:
“How can these recluses, sons of the Sakyans, throw out amidst the houses rinsings of the bowls with lumps of boiled rice, like householders who enjoy pleasures of the senses?”
Monks heard … as in Bu-Sk.55 … “… should be set forth:
‘I will not throw out amidst the houses rinsings of the bowl with lumps of boiled rice,’ is a training to be observed.”
One should not throw out amidst the houses rinsings of the bowl with lumps of boiled rice. Whoever out of disrespect throws out amidst the houses rinsings of the bowl with lumps of boiled rice, there is an offence of wrong-doing.
There is no offence if it is unintentional, if he is not thinking, if he does not know, if he is ill, if he throws them out having removed or broken up or covered up or taken out, if there are accidents, if he is mad, if he is the first wrong-doer.