score:4
Thanks to everyone for the comments and to @Narnian and @Flimzy for their answers. @Narnian, I don't consider the Moses reference a quote, so I was left with the "hard way" suggested by @FMS, which was to individually check every instance of the word "Pharisee" (or "Pharisees") in the Bible. This turned up 93 hits, which I investigated one at a time. I viewed each hit verse in context, identified the full passage to which it belonged, and made a table of conversations, speakers, words spoken, and Scripture quoted. The final result is here:
http://www.the-vardemans.net/andrew/Pharisees.html
I didn't identify a single quote of OT Scripture by the Pharisees, while Jesus quoted the following OT Scriptures, some more than once, all in conversation with Pharisees:
Upvote:3
Paul was a Pharisee, and he quoted scripture extensively in his epistles, but that's not in the Gospels.
I find no other examples of Pharisees directly quoting scripture recorded in the New Testament, based on my search at Bible Gateway. But it would be very surprising to think they didn't, as well as they knew the law, which was based on (but not exclusively) scripture.
Upvote:5
Sometimes the Scriptures identify Pharisees specifically, but other times they merely reference chief priests, who may have been Pharisees. There are a few passages of note:
The Chief Priests and Scribes cite Micah 5:2 in reference to the birth of the Messiah
Gathering together all the chief priests and scribes of the people, he inquired of them where the Messiah was to be born. 5 They said to him, “In Bethlehem of Judea; for this is what has been written by the prophet:
6 ‘And you, Bethlehem, land of Judah, Are by no means least among the leaders of Judah; For out of you shall come forth a Ruler Who will shepherd My people Israel.’” Matthew 2:4-6 NASB
The Scribes and Pharisees reference Moses' Teaching on Adultery
The scribes and the Pharisees brought a woman caught in adultery, and having set her in the center of the court, 4 they said to Him, “Teacher, this woman has been caught in adultery, in the very act. 5 Now in the Law Moses commanded us to stone such women; what then do You say?” John 8:3-5 NASB