The word(s) "whereof" appears 55 time(s) in 53 verse(s) in Quran in Muhammad Pickthal translation.

(21) And We shall inherit from him that whereof he spake, and he will come unto Us, alone (without his wealth and children).

(22) And they worship instead of Allah that for which He hath sent down no warrant, and that whereof they have no knowledge. For evil-doers there is no helper.

(23) Then We produce for you therewith gardens of date-palms and grapes, wherein is much fruit for you and whereof ye eat;

(24) And the chieftains of his folk, who disbelieved and denied the meeting of the Hereafter, and whom We had made soft in the life of the world, said: This is only a mortal like you, who eateth of that whereof ye eat and drinketh of that ye drink.

(25) Had it not been for the grace of Allah and His mercy unto you in the world and the Hereafter an awful doom had overtaken you for that whereof ye murmured.

(26) When ye welcomed it with your tongues, and uttered with your mouths that whereof ye had no knowledge, ye counted it a trifle. In the sight of Allah it is very great.

(27) No blame is there upon the blind nor any blame upon the lame nor any blame upon the sick nor on yourselves if ye eat from your houses, or the houses of your fathers, or the houses of your mothers, or the houses of your brothers, or the houses of your sisters, or the houses of your fathers' brothers, or the houses of your fathers' sisters, or the houses of your mothers' brothers, or the houses of your mothers' sisters, or (from that) whereof ye hold the keys, or (from the house) of a friend. No sin shall it be for you whether ye eat together or apart. But when ye enter houses, salute one another with a greeting from Allah, blessed and sweet. Thus Allah maketh clear His revelations for you, that haply ye may understand.

(28) The revelation of the Scripture whereof there is no doubt is from the Lord of the Worlds.

(29) He directeth the ordinance from the heaven unto the earth; then it ascendeth unto Him in a Day, whereof the measure is a thousand years of that ye reckon.

(30) Have they not seen how We lead the water to the barren land and therewith bring forth crops whereof their cattle eat, and they themselves? Will they not then see?