The word(s) "let" appears 241 time(s) in 215 verse(s) in Quran in Mohsin Khan translation.

(71) "And O my people! let not my Shiqaq cause you to suffer the fate similar to that of the people of Nuh (Noah) or of Hud or of Salih, and the people of Lut (Lot) are not far off from you!

(72) Alif-Lam-Ra. [These letters are one of the miracles of the Qur'an, and none but Allah (Alone) knows their meanings]. These are the Verses of the Clear Book (the Qur'an that makes clear the legal and illegal things, laws, a guidance and a blessing).

(73) And there came a caravan of travellers and they sent their water-drawer, and he let down his bucket (into the well). He said: "What good news! Here is a boy." So they hid him as merchandise (a slave). And Allah was the All-Knower of what they did.

(74) And he said: "O my sons! Do not enter by one gate, but enter by different gates, and I cannot avail you against Allah at all. Verily! The decision rests only with Allah. In Him, I put my trust and let all those that trust, put their trust in Him."

(75) Alif-Lam-Mim-Ra. [These letters are one of the miracles of the Qur'an; and none but Allah (Alone) knows their meanings]. These are the Verses of the Book (the Qur'an), and that which has been revealed unto you (Muhammad صلى الله عليه و سلم) from your Lord is the truth, but most men believe not.

(76) Alif-Lam-Ra. [These letters are one of the miracles of the Qur'an, and none but Allah (Alone) knows their meanings]. (This is) a Book which We have revealed unto you (O Muhammad صلى الله عليه و سلم) in order that you might lead mankind out of darkness (of disbelief and polytheism) into light (of belief in the Oneness of Allah and Islamic Monotheism) by their Lord's Leave to the Path of the All-Mighty, the Owner of all Praise.

(77) And (remember) when Musa (Moses) said to his people: "Call to mind Allah's Favour to you, when He delivered you from Fir'aun's (Pharaoh) people who were afflicting you with horrible torment, and were slaughtering your sons and letting your women alive; and in it was a tremendous trial from your Lord."

(78) Their Messengers said to them: "We are no more than human beings like you, but Allah bestows His Grace to whom He wills of His slaves. It is not ours to bring you an authority (proof) except by the Permission of Allah. And in Allah (Alone) let the believers put their trust.

(79) "And why should we not put our trust in Allah while He indeed has guided us our ways? And we shall certainly bear with patience all the hurt you may cause us, and in Allah (Alone) let those who trust, put their trust."

(80) And they (the Messengers) sought victory and help [from their Lord (Allah)]; and every obstinate, arrogant dictator (who refuses to believe in the Oneness of Allah) was brought to a complete loss and destruction.