The word(s) "chiefs" appears 26 time(s) in 26 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) Hast thou not Turned thy vision to the chiefs of the Children of Israel after (the time of) Moses? they said to a prophet (That was) among them: "Appoint for us a king, that we May fight in the cause of Allah." He said: "Is it not possible, if ye were commanded to fight, that that ye will not fight?" They said: "How could we refuse to fight in the cause of Allah, seeing that we were turned out of our homes and our families?" but when they were commanded to fight, they turned back, except a small band among them. But Allah Has full knowledge of those who do wrong.

(2) Then after them We sent Moses with Our signs to Pharaoh and his chiefs, but they wrongfully rejected them: So see what was the end of those who made mischief.

(3) Said the chiefs of the people of Pharaoh: "This is indeed a sorcerer well-versed.

(4) Said the chiefs of Pharaoh's people: "Wilt thou leave Moses and his people, to spread mischief in the land, and to abandon thee and thy gods?" He said: "Their male children will we slay; (only) their females will we save alive; and we have over them (power) irresistible."

(5) But if they violate their oaths after their covenant, and taunt you for your Faith,- fight ye the chiefs of Unfaith: for their oaths are nothing to them: that thus they may be restrained.

(6) Then after them sent We Moses and Aaron to Pharaoh and his chiefs with Our Signs. But they were arrogant: they were a people in sin.

(7) But none believed in Moses except some children of his people, because of the fear of Pharaoh and his chiefs, lest they should persecute them; and certainly Pharaoh was mighty on the earth and one who transgressed all bounds.

(8) Moses prayed: "Our Lord! Thou hast indeed bestowed on Pharaoh and his chiefs splendour and wealth in the life of the present, and so, Our Lord, they mislead (men) from Thy Path. Deface, our Lord, the features of their wealth, and send hardness to their hearts, so they will not believe until they see the grievous penalty."

(9) But the chiefs of the Unbelievers among his people said: "We see (in) thee nothing but a man like ourselves: Nor do we see that any follow thee but the meanest among us, in judgment immature: Nor do we see in you (all) any merit above us: in fact we think ye are liars!"

(10) Forthwith he (starts) constructing the Ark: Every time that the chiefs of his people passed by him, they threw ridicule on him. He said: "If ye ridicule us now, we (in our turn) can look down on you with ridicule likewise!