Limit of Parents Rights

Allah says in the Holy Quran Chapter 17 Surah Bani Israel verses 23-24:

Your Lord has enjoined the following: You should not worship anyone but Him Alone! Treat your parents with great kindness; if either or both of them attain old age, do not even say 'uff' to them; nor rebuke them; but speak to them kind words. Treat them with humility and tenderness and pray, "O our Lord, be merciful to them, just as they brought me up with kindness and affection in my childhood."

Allah says in the Holy Quran Chapter 31 Surah Luqman verse 14:

And We have enjoined on man (to be good) to his parents: in travail upon travail did his mother bear him and in years twain was his weaning: (hear the command) "Show gratitude to Me and to thy parents: to Me is (thy final) Goal.

Allah says in the Holy Quran Chapter 4 Surah Nisaa verse 36:

Serve Allah and join not any partners with Him: and do good to parents kinsfolk orphans those in need neighbors who are near neighbors who are strangers the companion by your side the way-farer (ye meet) and what your right hands possess: for Allah loveth not the arrogant the vainglorious.

Al-Tirmidhi Hadith 4941  Narrated by Abu Umamah:

A man said, "O Messenger of Allah (saws), what rights can parents demand from their children?" He (saws) replied, "They are (or your relation with them will determine) your Paradise or your Hell."

Al-Tirmidhi Hadith 4939  Narrated by Mu'awiyah ibn Jahimah:

Jahimah came to the Prophet (saws) and said, "Messenger of Allah (saws), I desire to go on a military expedition and I have come to consult you. He (saws) asked him if he had a mother, and when he replied that he had, he (saws) said, "Stay with her, for Paradise is at her feet."

Sahih Al-Bukhari Hadith 8.18 Narrated by Aisha:

The Prophet (saws) said: "The word 'Ar-Rahm' (womb) derives its name from 'Ar-Rahman' (i.e. Allah). So whosoever keeps good relations with it (womb i.e. kith and kin), Allah will keep good relations with him, and whosoever will sever it (i.e. severs his bonds of kith and kin) Allah too will sever His relations with him!"

Sahih Al-Bukhari Hadith 3.821 Narrated by Anas:

The Prophet (saws) was asked about the 'Kabair' (the absolute gravest sins in the Sight of Allah). He (saws) replied: "They are:--

To join others in worship with Allah,

To be undutiful to one's parents,

To kill a person (which Allah has forbidden to kill) (i.e. to commit the crime of murder),

And to give a false witness."

Sahih Al-Bukhari Hadith 8.290 Narrated by Abu Bakra:

Allah's Messenger (saws) said, "Shall I inform you of the biggest of the Great Sins?" They said, "Yes, O Allah's Messenger (saws)!" He (saws) said, "To join partners in worship with Allah, and to be undutiful to one's parents."

Al-Tirmidhi Hadith 3655 Narrated by Abdullah ibn Umar:

Allah's Messenger (saws) said, "There are three people to whom Allah has forbidden Paradise: one Allah's Messenger (saws) said, "There are three people to whom Allah has forbidden Paradise: one who is addicted to wine, an undutiful son, and a cuckold who agrees to his womenfolk's adultery."

Such is the rank and status the Lord Most High has accorded to parents in Islam that only after the rights due to Allah Subhanah and His Messenger (saws), the biggest rights in all mankind are due to one's parents, regardless of whether one's parents are believers or disbelievers! Thus it is absolutely obligatory upon the believers who sincerely fear Allah and the Last Day to be devoutly obedient to each and every lawful wish and command of their parents....the only, and we reiterate ONLY time a believer is permitted to disobey the command or wish of their parents is if they ask their off-spring to do anything which is clearly against the guidance and commands of Allah and His Messenger (saws). 

Allah says in the Holy Quran Chapter 31 Surah Luqmaan verses 14-15:

And We have enjoined on man (to be good) to his parents: in travail upon travail did his mother bear him, and in years twain was his weaning: (Hear the command:) "Show gratitude to Me and to thy parents: to Me is (thy final) goal. 

But if they strive to make and join in worship with Me things of which thou hast no knowledge, obey them not (in that command of theirs); yet bear them company in this life with justice (and consideration) and follow the way of those who turn to Me: in the end the return of you all is to Me, and I will tell you the Truth of all that ye did."

Allah says in the Holy Quran Chapter 29 Surah Ankabut verses 8-9:

We have enjoined on man kindness to parents: but if they (either of them) strive (to force) thee to join with Me (in worship) anything of which thou hast no knowledge obey them not (in that command of theirs). Ye have (all) to return to Me and I will tell you (the Truth) of all that ye did.

And those who believe and work righteous deeds, them shall We admit to the company of the Righteous.

The only beings to whom absolutely unconditional obedience is due is to Allah Subhanah and His Messenger (saws) alone.....the command, orders, or requests of all others, and we reiterate, absolutely all other beings will only followed if that order or command is not against the Guidance of Allah and His Messenger (saws)! Allah's Messenger (saws) said, "A creature is not to be obeyed when it involves disobedience to the Creator." 

If one wished or desired to pursue one subject as their major, and their parents desired another.......and one was unable to convince their parents regarding their choice of subject major.....and one sacrificed their desire to fulfill their parents desire only for the Sake of Allah Subahnah, rest assured that they shall have their reward in the Presence of their Lord for their sacrifice and their obedience. 

Besides sister, you are at absolute liberty to do both in this particular case....if time permits and Allah Wills, you can always pursue your desire after you have fulfilled the desire of your parents.

Al-Tirmidhi Hadith 3090  Narrated by Abu Hurayrah:

Allah's Messenger (saws) said, 'When someone with whose religion and character you are satisfied asks your daughter in marriage, accede to his request. If you do not do so, there will be temptation on earth and extensive corruption.'

Sahih Al-Bukhari Hadith 9.101 Narrated by Aisha:

Allah's Messenger (saws) said, "It is essential to have the consent of a virgin (for her marriage).' I (Aisha) said, "A virgin feels shy." The Prophet (saws) said, "Her silence means her consent."

It is an absolutely obligatory condition of a marriage to be legal in Shariah for the bride to consent to her marriage. If the parents know that their daughter is not willing to marry a person of their choice, it would only be righteousness and prudence on their part that they seek to marry their daughter to another person whom both, they and their daughter consent.

If one trusts, obeys, and follows the guidance and commands of Allah and His Messenger (saws), one can be assured of never ever being misled; but if one believes, obeys and follows any other guidance, other than that of Allah and His Messenger (saws), one can be assured of being led astray.