When does the ruling of individual obligation (separate from partnership) apply in cases of mixed assets?

Primary text

The ruling of individual obligation, separate from the partner's obligation, is established when two individuals possess separate minimum thresholds (*Nisab*) which are then mixed, or when one possesses a full *Nisab* and the other less, and they mix them immediately, contingent upon accepting that a small amount is forgiven. This requires that the ownership, even if small, must have been separate immediately prior to the mixing, or that one owner had a full *Nisab* while the other had less than a *Nisab* when they were mixed during the year (*Hawl*).