I actually made an updated parallels table many years ago when I first started working with these texts. But I ran into some issues, so it’s not fully completed. I decided to wait until the vibhanga translations were finished before finalizing the parallels, but now the vibhanga has been dragging on forever…
I think people don’t realize how much more complicated the parallels situation is for the bhikkhuni rules. Here are a few issues, off the top of my head. If I think about it a little more, I’ll probably come up with more problems:
- Rule Clusters
By far the biggest issue is that many bhikkhuni rules don’t have a 1:1 relationship, (and SC doesn’t support partial parallels for vinaya rules.) There are clusters of rules that parallel clusters of similar rules in other vinayas. There’s clearly a common core, but it was developed into different directions.
Let me make this clearer with an example:
These are some rules from the Pali text:
Relinquishment With Confession 4: Asking for Something Else
If a nun asks for one thing and then for something else, she commits an offense entailing relinquishment and confession.
Relinquishment With Confession 5: Exchanging for Something Else
If a nun gets one thing in exchange and then something else, she commits an offense entailing relinquishment and confession.
Relinquishment With Confession 6: Exchanging Saṅgha Property
When a requisite belonging to the Sangha is designated for a specific purpose, if a nun exchanges it for something else, she commits an offense entailing relinquishment and confession.
Relinquishment With Confession 7: Exchanging Saṅgha Property (2nd)
When a requisite belonging to the Sangha is designated for a specific purpose and was asked for, if a nun exchanges it for something else, she commits an offense entailing relinquishment and confession.
Relinquishment With Confession 8: Exchanging Group Property
When a collective requisite is designated for a specific purpose, if a nun exchanges it for something else, she commits an offense entailing relinquishment and confession.
Relinquishment With Confession 9: Exchanging Group Property (2nd)
When a collective requisite is designated for a specific purpose and was asked for, if a nun exchanges it for something else, she commits an offense entailing relinquishment and confession.
Relinquishment With Confession 10: Exchanging Personal Property
When a personal requisite is designated for a specific purpose and was asked for, if a nun exchanges it for something else, she commits an offense entailing relinquishment and confession.
Here are the rules from the Mahasanghika
Np11
If a bhikkhunī asks for beds and mats, but then herself exchanges them for robes, bowls, drinks, food, or liquid remedies and medicines for the sick for herself, it is a nissaggiya pācittiya.Np12
If a bhikkhunī uses offerings from people for a certain purpose to do something else, it is a nissaggiya pācittiya.Np13
If a bhikkhunī asks for food, exchanges it for robes, bowls, drinks, food, liquid remedies, and medicines, and uses them, it is a nissaggiya pācittiya.
Clearly these rules have a common core. But no rule is a proper parallal to a specific other rule. When you add the rules from 6 schools instead of just 2, it’s just a messy tangle.
There are so many similar situations. Here’s another slightly less messy example:
The Pali has 4 rules about a bhikkhuni being massaged (pc90-93), by another bhikkhuni, a sikkhamana, a samaneri, or a female householder. Some schools combine all these cases into one rule. Some schools add a 5th rule about being massaged by a female non-Buddhist renunciate. Should all rules in this cluster be seen as parallel to each other?
That would make the 4 Pali rules parallels to each other. So far, SC doesn’t have parallel rules within the same school. We only have parallels between different schools.
The same issue applies to Pali Ss3, the “alone” rules. The Pali combines 4 situations into one rule. Some schools break them up into 4 different rules. Some only have 3 rules and are missing one case. Some have 4 situations (either combined or separately), but it’s not the same 4 as in Pali.
This is a very common issue, and there are many more examples I could post here.
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Unrecognizeable parallels
Parallel rules may have developed so far from the original rule, that they are virtually unrecognizeable as the same rule. There’s a small number of rules which I believe to be parallels, but without an in-depth study of the patimokkha as a whole, casual readers will not see how they could possibly belong together.
There are also patimokkha rules that don’t look like parallels, but when you read the vibhanga, it suddenly becomes evident that they are in fact parallels. -
Pm-kd crossover parallels
There are many patimokkha rules that have parallels in the khandhakas of other schools. We don’t currently have a system to identify khandhaka rules, especially in non-Pali vinayas. So it’s difficult to refer to them and make parallels tables. -
Floating origin stories
Most vinayas preserve the famous origin stories we know and love from the Pali vinaya, with certain variations in the details of course. For example the story where a bhikkhuni dumps her chamber pot on a brahmin’s head, or the story where nuns build a stupa, a monk smashes it, and the nuns plot revenge. However, they’re not necessarily attached to the same rules. So we need a system for parallel stories in different rules.
This also extends to other stories (jatakas, khandhaka stories) that have parallels in many vinayas and even the suttas.
For example, the disputes between Thullananda and Mahakassapa are a popular motif in most/all? schools, and stories about them have proliferated throughout the vinayas and suttas. -
Different rules in pm and vb
There are cases where the same school has one rule in their pm, and a completely different rule in the same place in their vb. -
Rules modelled after other rules
Here’s an example:
Dg np24
If a bhikkhunī keeps a spare bowl, it is a nissaggiya pācittiya.Dg np25
If a bhikkhunī keeps many well-formed utensils, it is a nissaggiya pācittiya.
Dg np24 is a well-known rule and has parallels in all schools. Np25 is a unique creation of the Dg and Mi schools, and clearly modelled after 24. But is it a parallel to 24? We would probably say no at first, but if you look at the parallels to np24 in other schools, their vibhangas do sometimes include utensils other than the standard alms bowl. So they cover a similar range as Dg np25.
The Mahasanghika has another spin-off about keeping a spare robe. Should that then also be a parallel? To the bowl rule or the utensil rule or both?
I guess I should also mention that there’s a huge amount of rules with no or only one parallel. Schools were really creative and each came up with their unique texts.