The word(s) "fit" appears 66 time(s) in 64 verse(s) in Quran in Muhammad Habib Shakir translation.

(41) And when you forsake them and what they worship save Allah, betake yourselves for refuge to the cave; your Lord will extend to you largely of His mercy and provide for you a profitable course in your affair.

(42) Until when he reached the place where the sun set, he found it going down into a black sea, and found by it a people. We said: O Zulqarnain! either give them a chastisement or do them a benefit.

(43) What! could they not see that it did not return to them a reply, and (that) it did not control any harm or benefit for them?

(44) He said: What! do you then serve besides Allah what brings you not any benefit at all, nor does it harm you?

(45) So We responded to him and gave him Yahya and made his wife fit for him; surely they used to hasten, one with another In deeds of goodness and to call upon Us, hoping and fearing and they were humble before Us.

(46) He calls besides Allah upon that which does not harm him and that which does not profit him, that is the great straying.

(47) He calls upon him whose harm is nearer than his profit; evil certainly is the guardian and evil certainly is the associate.

(48) And marry those among you who are single and those who are fit among your male slaves and your female slaves; if they are needy, Allah will make them free from want out of His grace; and Allah is Ample-giving, Knowing.

(49) And they have taken besides Him gods, who do not create anything while they are themselves created, and they control not for themselves any harm or profit, and they control not death nor life, nor raising (the dead) to life.

(50) And they serve besides Allah that which neither profits them nor causes them harm; and the unbeliever is a partisan against his Lord.