Here is the original Arabic text from Ibn Baz's official website 

"وبلغ أمير الأحساء وتوابعها من بني خالد سليمان ابن عريعر الخالدي أمر الشيخ، وأنه يدعو إلى الله، وأنه يهدم القباب، وأنه يقيم الحدود، فعظم على هذا البدوي أمر الشيخ، لأن من عادة البادية -إلا من هدى الله- الإقدام على الظلم، وسفك الدماء، ونهب الأموال، وانتهاك الحرمات، فخاف أن هذا الشيخ يعظم أمره، ويزيل سلطان الأمير البدوي، فكتب إلى عثمان يتوعده، ويأمره أن يقتل هذا المطوع الذي عنده في العيينة، وقال: إن المطوع الذي عندكم بلغنا عنه كذا، وكذا!! فإما أن تقتله، وإما أن نقطع عنك خراجك الذي عندنا.!! وكان عنده للأمير عثمان خراج من الذهب، فعظم على عثمان أمر هذا الأمير، وخاف إن عصاه أن يقطع عنه خراجه أو يحاربه"

And this is how it translates (punch it into an automatated translator or show it to a friend if you don't believe it):

"And news of the Shaikh reached the emir of al-Ahsa and its dependencies from Bani Khalid, Sulaiman ibn 'Uray;ir al-Khaldi, and it came to his knowledge that he called to God, and that he brought down the domes, and that he instituted the hudud [punishments], and so the matter of the Shaikh disturbed this bedouin, for it is the habit of the bedouin - except those whom God has guided - to rush to commit injustice, bloodshed, expropriation, and violation of prohibitions, so he feared that the power of this Shaikh may increase and do away with the power of the bedouin prince.  And so he wrote to Uthman, threatening him, and ordered him that he must kill this mutawwa that is with him at 'Uyayna, and said: 'this mutawwa that is with you, such and such has come to our knowledge about him!!  Either you kill him, or we cut off the dividend that you have with us', for the emir Uthman had [an annual] dividend of gold in the custody of [al-Khaldi]."

No comment.

Now, I haven't been able to find a trace of the English version of this book online, but I would really appreciate it if you could confirm that it actually introduces the word "Shi'ite" in there.  If it does, then I would love to find out where I may find a copy, or at least what government ministry is in charge of printing it, because I would like to post the info on the Bani Khalid's official website so that they could file a complaint and have this error rectified.  Regards.