The word(s) "sons" appears 51 time(s) in 41 verse(s) in Quran in Muhammad Pickthal translation.

(31) And when thou saidst unto him on whom Allah hath conferred favour and thou hast conferred favour: Keep thy wife to thyself, and fear Allah. And thou didst hide in thy mind that which Allah was to bring to light, and thou didst fear mankind whereas Allah hath a better right that thou shouldst fear Him. So when Zeyd had performed that necessary formality (of divorce) from her, We gave her unto thee in marriage, so that (henceforth) there may be no sin for believers in respect of wives of their adopted sons, when the latter have performed the necessary formality (of release) from them. The commandment of Allah must be fulfilled.

(32) It is no sin for them (thy wives) to converse freely) with their fathers, or their sons, or their brothers, or their brothers' sons, or the sons of their sisters or of their own women, or their slaves. O women! Keep your duty to Allah. Lo! Allah is ever Witness over all things.

(33) Did I not charge you, O ye sons of Adam, that ye worship not the devil - Lo! he is your open foe! -

(34) Now ask them (O Muhammad): Hath thy Lord daughters whereas they have sons?

(35) (And again of their falsehood): He hath preferred daughters to sons.

(36) And when he brought them the Truth from Our presence, they said: Slay the sons of those who believe with him, and spare their women. But the plot of disbelievers is in naught but error.

(37) Or chooseth He daughters of all that He hath created, and honoureth He you with sons?

(38) Or hath He daughters whereas ye have sons?

(39) Thou wilt not find folk who believe in Allah and the Last Day loving those who oppose Allah and His messenger, even though they be their fathers or their sons or their brethren or their clan. As for such, He hath written faith upon their hearts and hath strengthened them with a Spirit from Him, and He will bring them into Gardens underneath which rivers flow, wherein they will abide. Allah is well pleased with them, and they are well pleased with Him. They are Allah's party. Lo! is it not Allah's party who are the successful?

(40) And will help you with wealth and sons, and will assign unto you Gardens and will assign unto you rivers.