Islam does not encourage stealing and who soever found guilty there prescribed punishment for the person. Allah commands and decrees that the hand of the thief, male or female be cut off.
وَٱلسَّارِقُ وَٱلسَّارِقَةُ فَٱقۡطَعُوٓاْ أَيۡدِيَهُمَا جَزَآءًۢ بِمَا كَسَبَا نَكَٰلًا مِّنَ ٱللَّهِۗ وَٱللَّهُ عَزِيزٌ حَكِيمٌ
As to the thief, Male or female, cut off his or her hands: a punishment by way of example, from Allah, for their crime: and Allah is Exalted in power.
تُقْطَعُ يَدُ السَّارِقِ فِي رُبْعِ دِينَارٍ فَصَاعِدًا
The hand of the thief shall be cut off if he steals a quarter of a Dinar or more.
Muslim recorded that Aishah, may Allah be pleased with her, said that the Messenger of Allah said,
لَاا تُقْطَعُ يَدُ السَّارقِ إِلاَّ فِي رُبْعِ دِينارٍ فَصَاعِدًا
The hand of the thief shall only be cut off if he steals a quarter of a Dinar or more.
This is also the view of Imam Ahmad bin Hanbal and Ishaq bin Rahwayh in one of the narrations from him, as well as Abu Thawr, and Dawud bin Ali Az-Zahari, may Allah have mercy upon them.
As for Imam Abu Hanifah and his students Abu Yusuf, Muhammad and Zufar, along with Sufyan Ath-Thawri, they said that;
the least amount of theft that deserves cutting off the hand is ten Dirhams, whereas a Dinar was twelve Dirhams at that time.
The first ruling is the correct one, that the least amount of theft is one forth of a Dinar or more.
This meager amount was set as the limit for cutting the hand, so that the people would refrain from theft, and this is a wise decision to those who have sound comprehension.
Hence Allah's statement,
جَزَاء بِمَا كَسَبَا نَكَالاً مِّنَ اللّهِ
as a recompense for that which both committed, a punishment by way of example from Allah.
This is the prescribed punishment for the evil action they committed, by stealing the property of other people with their hands. Therefore, it is fitting that the tool they used to steal the people's wealth be cut off as punishment from Allah for their error.
وَاللّهُ عَزِيزٌ
And Allah is All-Powerful, (in His torment),
حَكِيمٌ
All-Wise.
in His commands, what he forbids, what He legislates and what He decrees.
All praise is due to Allah Azawajal we ask Him to bless the Prophet Sallah Llah Alei Wasalam and let us die on the path of Qur'an and Sunnah.