The word(s) "son" appears 442 time(s) in 403 verse(s) in Quran in Mohsin Khan translation.

(221) No knowledge have they of such a thing, nor had their fathers. Mighty is the word that comes out of their mouths [i.e. He begot sons and daughters]. They utter nothing but a lie .

(222) And We send not the Messengers except as givers of glad tidings and warners. But those who disbelieve, dispute with false argument, in order to refute the truth thereby. And they treat My Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.), and that with which they are warned, as a jest and mockery!

(223) And who does more wrong than he who is reminded of the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of his Lord, but turns away from them, forgetting what (deeds) his hands have sent forth. Truly, We have set veils over their hearts lest they should understand this (the Qur'an), and in their ears, deafness. And if you (O Muhammad صلى الله عليه وسلم) call them to guidance, even then they will never be guided.

(224) Then they both proceeded, till they met a boy, and he (Khidr) killed him. Musa (Moses) said: "Have you killed an innocent person who had killed none? Verily, you have committed a thing Nukr (a great Munkar - prohibited, evil, dreadful thing)!"

(225) Do then those who disbelieved think that they can take My slaves [i.e., the angels, Allah's Messengers, 'Îsa (Jesus), son of Maryam (Mary)] as Auliya' (lords, gods, protectors) besides Me? Verily, We have prepared Hell as an entertainment for the disbelievers (in the Oneness of Allah - Islamic Monotheism) .

(226) "They are those who deny the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of their Lord and the Meeting with Him (in the Hereafter). So their works are in vain, and on the Day of Resurrection, We shall assign no weight for them.

(227) "That shall be their recompense, Hell; because they disbelieved and took My Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) and My Messengers by way of jest and mockery.

(228) (Allah said) "O Zakariyya (Zachariah)! Verily, We give you the glad tidings of a son, whose name will be Yahya (John). We have given that name to none before (him)."

(229) He said: "My Lord! How can I have a son, when my wife is barren, and I have reached the extreme old age."

(230) (It was said to his son): "O Yahya (John)! Hold fast the Scripture [the Taurat (Torah)]." And We gave him wisdom while yet a child.