Originally Posted by kael03
Kabuto speculated that there might have been enough of Jiraiya's DNA on Pain's weapons to pull it off.
It's also possible if Jiriaya ever gave Oro something during their team days together that has DNA. It hasn't happened this far, so I personally don't expect it...
Btw, with Naruto getting the dark half of Kyuubs, plus what he got from Kurama, he should be able to muster 5 clones for just gathering NE sent elsewhere, while 10 clones attack easily.