The word(s) "which" appears 877 time(s) in 758 verse(s) in Quran in Mohsin Khan translation.

(131) Say: "O people of the Scripture (Jews and Christians)! Do you criticize us for no other reason than that we believe in Allah, and in (the revelation) which has been sent down to us and in that which has been sent down before (us), and that most of you are Fasiqun [rebellious and disobedient (to Allah)]?"

(132) And you see many of them (Jews) hurrying towards sin and transgression, and eating illegal things [as bribes and Riba (usury)]. Evil indeed is that which they have been doing.

(133) Why do not the rabbis and the religious learned men forbid them from uttering sinful words and from eating illegal things. Evil indeed is that which they have been performing.

(134) O Messenger (Muhammad صلى الله عليه وسلم)! Proclaim (the Message) which has been sent down to you from your Lord. And if you do not, then you have not conveyed His Message. Allah will protect you from mankind. Verily, Allah guides not the people who disbelieve.

(135) 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.

(136) Say (O Muhammad صلى الله عليه وسلم to mankind): "How do you worship besides Allah something which has no power either to harm or benefit you? But it is Allah Who is the All-Hearer, All-Knower."

(137) They used not to forbid one another from Al-Munkar (wrong, evil-doing, sins, polytheism, disbelief) which they committed. Vile indeed was what they used to do.

(138) You see many of them taking the disbelievers as their Auliya' (protectors and helpers). Evil indeed is that which their ownselves have sent forward before them; for that (reason) Allah's Wrath fell upon them, and in torment they will abide.

(139) "And why should we not believe in Allah and in that which has come to us of the truth (Islamic Monotheism)? And we wish that our Lord will admit us (in Paradise on the Day of Resurrection) along with the righteous people (Prophet Muhammad صلى الله عليه وسلم and his Companions رضي الله عنهم)."

(140) So because of what they said, Allah rewarded them Gardens under which rivers flow (in Paradise), they will abide therein forever. Such is the reward of Al-Muhsinun (the good-doers).