Theravāda Vinayapiṭaka
Monks’ rules and their analysis
Monks’ Training (Sekhiya) 40
… in Anāthapiṇḍika’s monastery. Now at that time the group of six monks made up long pieces (of food) …” …
‘I will make up the pieces (of food) into a round,’ is a training to be observed.”
One should make up a piece (of food) into a round. Whoever out of disrespect makes up a long piece (of food), 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 they are solid victuals, all sorts of fruits, dainties, if there are accidents, if he is mad, if he is the first wrong-doer.
The Fourth Division: that on attentively