Gleanings — Paragraph 535
Source (Arabic)
وإنّ هذا خیر لکم عمّا عندکم ویشهد بذلک لسان الله علی لساني النّاطق العالم العلیم قل أزعمتم بأنّ بإقبالکم یزیده شیئا لا فونفسي
Translation
Detach yourselves from all else but Me, and turn your faces towards My face, for better is this for you than the things ye possess. The Tongue of God testifieth to the truth of My words, through Mine own Word that speaketh the truth, and embraceth and comprehendeth all things.