The word(s) "adding" appears 2 time(s) in 2 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) But those who reject Faith after they accepted it, and then go on adding to their defiance of Faith,- never will their repentance be accepted; for they are those who have (of set purpose) gone astray.

(2) Without adding, "So please Allah!" and call thy Lord to mind when thou forgettest, and say, "I hope that my Lord will guide me ever closer (even) than this to the right road."