A slave who confesses to an offence punishable by flogging: is this valid against him?

Abu Hurrah said that al-Hasan al-Basri said: A slave's confession is valid in matters in which a prescribed punishment (hadd) is applied to him. But in matters in which his life would be lost, his confession is not valid.

Al-A'mash said that Abu Ishaq said: A slave confessed to theft before Shurayh, and he did not cut off his hand.

Jabir and Abdullah bin Isa said that al-Sha'bi said: A slave who confesses to theft is not subject to the punishment of having his hand cut off.

Ibn Jurayj said that Sulayman bin Musa said: A slave's confession is not valid except with witnesses.

Ibn Jurayj said that Ata said: A slave's confession is not valid.

Jabir said that Abu al-Duha and al-Sha'bi said: A prescribed punishment (hadd) shall not be applied to a slave on account of his confession unless it is accompanied by clear evidence (bayyinah).

Ash'ath said that al-Hasan al-Basri used to say: A slave's confession is not valid in any crime, intentional or unintentional, in which his life would be lost.

Abu Malik al-Ashja'i said that the people of Hurmuz and the tribe relate that Hurmuz came to Sayyiduna Ali (may Allah be pleased with him) and said: I have incurred a prescribed punishment (hadd). He said: Repent to Allah and conceal your sin. He said: O Commander of the Faithful! Purify me. He said: O Qanbar! Stand up and carry out the prescribed punishment on him, and he himself will count his punishment; so when he stops you, then stop. And Hurmuz was a slave.