The word(s) "sorrowful" appears 2 time(s) in 2 verse(s) in Quran in Mohsin Khan translation.

(1) (Allah) said: "Therefore it (this holy land) is forbidden to them for forty years; in distraction they will wander through the land. So be not sorrowful over the people who are the Fasiqun (rebellious and disobedient to Allah)."

(2) Say (O Muhammad صلى الله عليه وسلم) "O people of the Scripture (Jews and Christians)! You have nothing (as regards guidance) till you act according to the Taurat (Torah), the Injeel (Gospel), and what has (now) been sent down to you from your Lord (the Qur'an)." Verily, that which has been sent down to you (Muhammad صلى الله عليه وسلم) from your Lord increases in most of them (their) obstinate rebellion and disbelief. So be not sorrowful over the people who disbelieve.