'It is Sunnah. The Messenger of Allah cut off a thief's hand then hung it from his neck."'(Daif)  

سُنَّةٌ قَطَعَ رَسُولُ اللَّهِ ﷺ يَدَ سَارِقٍ وَعَلَّقَ يَدَهُ فِي عُنُقِهِ  

"I said to Fadalah bin 'Ubaid: 'Do you think that hanging the hand from the thief's neck is Sunnah?' He said: 'Yes; a thief was brought to the Messenger of Allah and he cut off his hand and hung it from his neck."' (Daif) Abu 'Abdur-Rahman (An-Nasai) said; Al-Hajjaj bin Artah is weak, his narrations are not used as proof.  

نَعَمْ أُتِيَ رَسُولُ اللَّهِ ﷺ بِسَارِقٍ فَقَطَعَ يَدَهُ وَعَلَّقَهُ فِي عُنُقِهِ قَالَ أَبُو عَبْدِ الرَّحْمَنِ الْحَجَّاجُ بْنُ أَرْطَاةَ ضَعِيفٌ وَلاَ يُحْتَجُّ بِحَدِيثِهِ  

"The thief is not to be penalized (financially) if the Hadd punishment is carried out on him." (Daif) Abu 'Abdur-Rahman (An-Nasai) said: This is Mursal and it is not confirmed.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ يُغَرَّمُ صَاحِبُ سَرِقَةٍ إِذَا أُقِيمَ عَلَيْهِ الْحَدُّ قَالَ أَبُو عَبْدِ الرَّحْمَنِ وَهَذَا مُرْسَلٌ وَلَيْسَ بِثَابِتٍ