The word(s) "legal" appears 70 time(s) in 58 verse(s) in Quran in Mohsin Khan translation.

(41) O you who believe! Let your slaves and slave-girls, and those among you who have not come to the age of puberty ask your permission (before they come to your presence) on three occasions: before Fajr (morning) Salat (prayer), and while you put off your clothes for the noonday (rest), and after the 'Isha' (late-night) Salat (prayer). (These) three times are of privacy for you; other than these times there is no sin on you or on them to move about, attending to each other. Thus Allah makes clear the Ayat (the Verses of this Qur'an, showing proofs for the legal aspects of permission for visits) to you. And Allah is All-Knowing, All-Wise.

(42) And when the children among you come to puberty, then let them (also) ask for permission, as those senior to them (in age). Thus Allah makes clear His Ayat (Commandments and legal obligations) for you. And Allah is All-Knowing, All-Wise.

(43) Make not the calling of the Messenger (Muhammad صلى الله عليه وسلم) among you as your calling one of another. Allah knows those of you who slip away under shelter (of some excuse without taking the permission to leave, from the Messenger (صلى الله عليه وسلم). And let those who oppose the Messenger's (Muhammad صلى الله عليه وسلم) commandment (i.e. his Sunnah - legal ways, orders, acts of worship, statements) (among the sects) beware, lest some Fitnah (disbelief, trials, afflictions, earthquakes, killing, overpowered by a tyrant) should befall them or a painful torment be inflicted on them.

(44) On the Day they will see the angels - no glad tidings will there be for the Mujrimun (criminals, disbelievers, polytheists, sinners) that day. And they (angels) will say: "All kinds of glad tidings are forbidden to you," [none will be allowed to enter Paradise except the one who said: La ilaha illallah, "(none has the right to be worshipped but Allah) and acted practically on its legal orders and obligations. See the footnote of V.2:193)].

(45) And those who invoke not any other ilah (god) along with Allah, nor kill such person as Allah has forbidden, except for just cause, nor commit illegal sexual intercourse - and whoever does this shall receive the punishment.

(46) O wives of the Prophet! Whoever of you commits an open illegal sexual intercourse, the torment for her will be doubled, and that is ever easy for Allah.

(47) And remember (O you the members of the Prophet's family, the Graces of your Lord), that which is recited in your houses of the Verses of Allah and Al-Hikmah (i.e. Prophet's Sunnah - legal ways, so give your thanks to Allah and glorify His Praises for this Qur'an and the Sunnah ). Verily, Allah is Ever Most Courteous, Well-Acquainted with all things.

(48) Verily, the Muslims (those who submit to Allah in Islam) men and women, the believers men and women (who believe in Islamic Monotheism), the men and the women who are obedient (to Allah), the men and women who are truthful (in their speech and deeds), the men and the women who are patient (in performing all the duties which Allah has ordered and in abstaining from all that Allah has forbidden), the men and the women who are humble (before their Lord - Allah), the men and the women who give Sadaqat (i.e. Zakat, and alms), the men and the women who observe Saum (fast) (the obligatory fasting during the month of Ramadan, and the optional Nawafil fasting), the men and the women who guard their chastity (from illegal sexual acts) and the men and the women who remember Allah much with their hearts and tongues Allah has prepared for them forgiveness and a great reward (i.e. Paradise).

(49) There is no blame on the Prophet (صلى الله عليه وسلم) in that which Allah has made legal for him. That has been Allah's Way with those who have passed away of (the Prophets of) old. And the Command of Allah is a decree determined.

(50) And as one who invites to Allah [Islamic Monotheism, i.e. to worship none but Allah (Alone)] by His Leave, and as a lamp spreading light (through your instructions from the Qur'an and the Sunnah - the legal ways of the Prophet صلى الله عليه وسلم ).