The phrase ذَٰلِكَ الدِّينُ الْقَيِّمُ (The Right Religion) has been used in Q9:36, Q12:40, Q30:30 & in Q98:5 as وَذَٰلِكَ دِينُ الْقَيِّمَةِ in the Quran. Q30:43 quoted above commands us to فَأَقِمْ وَجْهَكَ لِلدِّينِ الْقَيِّمِ (So set your face to the religion right). Q30:30 informs us that one of the decrees of The Right Religion is that there should be no change in the creation of Allah, especially humans.
Q4:119 informs us that Satan has vowed to mislead bani Adam, and one of his misleading commands is to change the creation of Allah.
Satan knows that mortals desire immortality, therefore he effectively uses longevity/immortality as a promise to lead humans into error. He used it with Adam, and he has used it with many mighty civilisations, causing them to wrong their NAFS.
Current technology requires that organs be harvested from the body while the person is still on the ventilator, which means the person is still breathing. When doctors think that they can no longer save a patient, the patient is evaluated for brain death. If the patient is found to be brain dead, organs are harvested. Legally, organs can be harvested according to the will of the patient, if he/she has pledged his/her organs, or with the permission of his/her family. Also read Organ Trade for related issues.
Though 'a brain dead donor is preferred, but only a small percentage of deaths are brain deaths. Therefore, the majority of human organ sources are post cardiac death', while there is at least still some brain activity.
Not always. There have been cases where a patient who has been declared brain-dead is removed from the ventilator but continues to breathe and live on for sometime.
According to The Bible and The Quran, we are made of dust. This means that we are the body. When we die, we stop living and transfer to the realm of the dead. Death is a subsequent stage, a state of being. We know very little about that realm, but The Quran informs us that the dead exist in an alternate state of being.
The popular concept regarding the soul is not rooted in the scriptures. According to the Quran, we are our body and we have a NAFS. Please read Human: Body or Soul? for details.
As mentioned above, we are the body!
Q39:42 informs us that the NAFS is removed from the body every time we fall asleep; would it be okay to harvest organs of a person while he/she is asleep?
According to some ayaat of The Quran, it seems that the same earth that perishes from our dead body will be used to resurrect us. Please read the section titled Body in Human: Body or Soul? for details.
The ayat is Q5:32. The same ayat also contains the exception clause 'he who kills a soul other than (for) a soul or (for) spreading corruption in the earth then (it) is as if he has killed all [the] mankind'.
Allah creates in the womb as He wills. In The Quran, there is mention of three unusual cases of conception. Abraham and his wife, Zechariah & his wife, and the Virgin Mary. In all three cases, they have not been directed to take any particular treatment/medical intervention; rather they have been told that Allah’s command will be done.
In Q4:1, we have been cautioned to keep our duty regarding the womb. The Quran mentions the womb along with corruption as in Q47:22. The womb must to be guarded from corruption.
Harvesting organ from an entity grown specifically for the purpose would entail some form of medical intervention to grow such an entity, as well as eventually killing the entity to harvest the organ. That would be a major crime in itself.
Transplanting a non-human organ will also result in corruption.
Allah creates perfectly. He has decreed mortality in this life, and promises immortality in the Hereafter. Adam erred in his pursuit of immortality. The Quran specifically warns against making changes in the NAFS. Every civilization that made changes in their NAFS was punished, except the people of Jonah. Please read Wronging the NAFS.
I know that there are many people who have pledged their organs, and some are also earnestly working for the cause, sincerely assuming it to be a good deed. May Allah guide us all, enable us to submit to the guidance in The Quran, forgive us and be well-pleased with us.