Is there any way to exploit this move in the Najdorf?

I have played a few games as black where I have seen the following move: 1. e4 c5 2. Nf3 d6 3. Bb5+. I have to inevitably give up my Knight or bishop and either double my pawns or put my queen on a square I don't want. There must be a reason this is not the book opening for white, am I missing something that would help me exploit this move order. Any ideas? 

Grandmasters play 3. bb5+ with some regularity.  It has become much more fashionable in recent years.  This line is the Moscow variation, but can transpose to Rossolimo variation if black plays nc6.  For simplicity, sometimes just the "Bb5 Sicilian".  Indeed, I have a book titled "easy guide to the Bb5 Sicilian".  White can get at most a very small opening advantage, but that is true of most modern openings these days.  https://www.365chess.com/opening.php?master=1&m=6&n=409&ms=e4.c5.Nf3.d6.Bb5&ns=3.3.4.4.409  Needless, to say, the answer to your question is no, there is no way to refute the bb5 Sicilian.  

Thanks @ArtNJ! Maybe I will try using it myself as white, it has certainly put me in a few binds, might as well do it to others... 

Jack, the top move in my Chessbase Live dB is Bd7, Bxd7, Qxd7. Nd7 is the second most frequent, and Nc6 is the third (Rossolimo when Nc6 played on move 2, and Bb5 white's 3rd move. I have been learning this.) They are ALL playable, and recapturing with a pawn toward the center is really not a liability for black, and will help you play d5 eventually. I hope this helps.

Yes, do give it a try.  With the Najdorf it is very important to know the middlegame themes, not just the initial moves, and while this is more true for black, it is to some extent true for white as well.  The bb5 Sicilian allows white to just develop more naturally.  If you screw up, there is probably a good and generally applicable lesson, rather than just something specific to the bb5 lines.  Its better for beginners IMHO.

I know Kasparov has played ...Nd7 before after Bb5+. The idea is to prevent trading on d7, since after white takes d7:

1. Helps black develop

2. Gives black the bishop pair

Here is what my Live dB has as mainline with Nd7:

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. O-O e5 8.
Qd3 h6 9. c4 b5 10. Nc3 bxc4 11. Qxc4 Nf6 12. Rd1 Be7 13. Be3 O-O *

Definitely not the game a Najdor player really wants.

I love when my oponents play that against me.I just play Bd7 and exchange my bad bishop for their good bishop.

Um, the LSB is Black’s good bishop. 

In "Experts on the Anti-Sicilian" GM Tiger Hillarp Person recommends Nd7 as the most fighting variation. Bd7 is also analyzed in the book, but the positions are rather boring. With Nd7 the positions are really unbalanced.

Remembering Najdorf in spanish

https://vm.tiktok.com/TnyLtA/

Jack,  All 3 replies are playable and depends on your style of play. I prefer Bd7 followed by QxB and Nc6. I do not like covering check with Nc6 because of BxN , b7xB c4!  White is closing up the position and if black plays d5 white responds e3 and there is no good way  to open up position ( which black should be aiming for because he has got pair of bishops).  

No way to refute Bb5+

The way to exploit it is to defend, trade pieces and aim to convert the advantage of the bishop's pair in the endgame. That is all easy to say, but hard to do in a game.