Duly Warn Potential Converts of Death Penalty for Apostasy in Islam

Related posts:
Apostacy

Blasphemy

Death Penalty for Leaving Islam?

N advised: For our brothers who are making dawa: You might need to mention for those want to convert to Islam,  that once they are Muslims,  they can not change back , otherwise they will be killed. Be transparent so we don't look like cheating anyone  Fair enough,  right ?

My response: Killing for leaving the religion is a practice that is not rooted in the Quran. Consider the following verses: 

Quran 4:137 Those who believe, then reject faith, then believe (again) and (again) reject faith, and go on increasing in unbelief,- Allah will not forgive them nor guide them on the way. 

How does one reject faith and then believe again if he/she is to be killed upon rejection of faith?  

Also, please consider the following verses:  

Quran 10:99 If it had been thy Lord's will, they would all have believed,- all who are on earth! wilt thou then compel mankind, against their will, to believe!

Quran 16:93 If Allah so willed, He could make you all one people: But He leaves straying whom He pleases, and He guides whom He pleases: but ye shall certainly be called to account for all your actions.

However, yes, many Muslims do believe that anyone who leaves the religion must be killed. Hence, its only fair to include it in the list of warnings about earthly trials, while laying due emphasis on the outcomes in the Hereafter (rewards for embracing the temporal trials vs the punishment for choosing the temporal over the eternal). 

Apostacy

Statement of an atheist: Islam is extremely possessive of its subjects. It is a religion that admits anyone into itsfold by the person simply uttering a one-sentence statement of faith, shahada: "I bear witness that there is no God but Allah, and Muhammad is Allah's messenger." By so saying, one becomes Muslim for life and surrenders theright to ever leave it. Anyone who leaves the Islamic fold is murtad(revert), or an apostate.
Answer: This is an incorrect belief, though certain sects strongly do believe in it. As I understand it from the Quran, there is no compulsion in religion, and those who enter the fold of Islam and then leave it, can enter again. This is only possible if they're alive, not if they are killed for apostasy.
Related verses from the Holy Quran:
2:256 There is no compulsion in religion. The right direction is henceforth distinct from error. And he who rejecteth false deities and believeth in Allah hath grasped a firm handhold which will never break. Allah is Hearer, Knower.
4:137 Those who believe, then reject faith, then believe (again) and (again) reject faith, and go on increasing in unbelief,- Allah will not forgive them nor guide them on the way.
10:99 If it had been thy Lord's will, they would all have believed,- all who are on earth! wilt thou then compel mankind, against their will, to believe!
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