outlaw: I didn't state any fact to begin with. I asked a question. Does Islam prescribe this punishment for theft?
And I'm the only one being evasive? No matter, here are the facts with precise Qur'anic source as reference.
"The male thief, and the female thief, you shall mark, cut, or cut-off their hands/means as a recompense for what they earned, and to serve as a deterrent from God. God is Noble, Wise. Whoever repents after his wrongdoing and makes amends, then God will relent on him. Truly, God is Forgiving, Merciful." [5:38-39] ... This is the verse you're s concerned about, no?
The Arabic word translated as "cut" in the above mentioned 5:38 is "iqtaa" and occurs 14 other times in the same verb form in The Quran, and with the exception of 59:5 and possibly 69:46 all other occurrences mean the non-physical or metaphorical action of "cutting off relationship" or "ending" [2:27, 3:127, 6:45, 7:72, 8:7, 9:121, 13:25, 15:66, 22:15, 27:32, 29:29, 56:33].
Also not that the Arabic word for "hands" (aydi) is often used in The Quran in a metaphorical manner [2:195, 2:237, 3:3, 3:73, 5:64, 6:93, 8:70, 9:29, 23:88, 28:47, 30:36, 38:45, 48:10, 48:24, 111:1], and often has a meaning of power/means. It should also be noted that this word is in the Arabic plural meaning 3 or more hands, whilst only two people are referenced: the male and the female thief. This plural usage causes problems for the common interpretation of hand cutting.
Thus, it is possible to understand the punishment for thieves in three alternative ways, (1) cutting off their hands, or (2) cutting or marking their hands, or (3) cutting their means to steal, or cutting their hands from committing the crime. It should be said however that the only working example given in The Qur'an of theft and its punishment is in the story of Joseph, in which option 3 is done by detaining the one guilty of theft, so that they can work to repay/compensate for the theft.
They said, "By God, you know we did not come to cause corruption in the land, and we are no thieves!"
He said, "What shall be its recompense, if you are not truthful?"
They said, "Its recompense is that he who has it in his bag, then he is its recompense. Like that do we recompense the wrongdoers."
[12:73-75]
12:79 makes it clear that Joseph (described in 6:84 as one of the guided and a good doer) was acting in accordance with God's law. Thus, one possible meaning of 5:38 is to apply it in the manner provided by Joseph's example.
To conclude, when all the above information is taken into account, it is clear that to physically cut off the hand or hands of the thief is not the only possible understanding and taking into account the law of equivalence would perhaps only be reserved for significant theft which led to harming others, hence harming the perpetrator being that the crime and its punishment must be in proportion to each other.