The word(s) "rightly" appears 18 time(s) in 18 verse(s) in Quran in Muhammad Pickthal translation.

(11) He only shall tend Allah's sanctuaries who believeth in Allah and the Last Day and observeth proper worship and payeth the poor-due and feareth none save Allah. For such (only) is it possible that they can be of the rightly guided.

(12) He said: Disguise her throne for her that we may see whether she will go aright or be of those not rightly guided.

(13) Say: Who giveth you provision from the sky and the earth? Say: Allah, Lo! we or you assuredly are rightly guided or in error manifest.

(14) Say: If I err, I err only to my own loss, and if I am rightly guided it is because of that which my Lord hath revealed unto me. Lo! He is Hearer, Nigh.

(15) Follow those who ask of you no fee, and who are rightly guided.

(16) And lo! they surely turn them from the way of Allah, and yet they deem that they are rightly guided;

(17) And know that the messenger of Allah is among you. If he were to obey you in much of the government, ye would surely be in trouble; but Allah hath endeared the faith to you and hath beautified it in your hearts, and hath made disbelief and lewdness and rebellion hateful unto you. Such are they who are the rightly guided.

(18) Is he who goeth groping on his face more rightly guided, or he who walketh upright on a straight road?