The word(s) "sect" appears 18 time(s) in 17 verse(s) in Quran in Abdullah Yusuf Ali translation.

(11) But the sects differ among themselves: and woe to the unbelievers because of the (coming) Judgment of a Momentous Day!

(12) Then shall We certainly drag out from every sect all those who were worst in obstinate rebellion against (Allah) Most Gracious.

(13) But people have cut off their affair (of unity), between them, into sects: each party rejoices in that which is with itself.

(14) Truly Pharaoh elated himself in the land and broke up its people into sections, depressing a small group among them: their sons he slew, but he kept alive their females: for he was indeed a maker of mischief.

(15) Those who split up their Religion, and become (mere) sects,- each party rejoicing in that which is with itself!

(16) But sects from among themselves fell into disagreement: then woe to the wrong-doers, from the Penalty of a Grievous Day!

(17) And thou wilt see every sect bowing the knee: Every sect will be called to its Record: "This Day shall ye be recompensed for all that ye did!