Zakah on horses, slaves and other things

Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) reports this saying of the Prophet (peace and blessings be upon him): "On grazing horses, one dinar is due for each horse."
Al-Tabarani recorded it in al-Mu'jam al-Awsat; its chain contains a narrator al-Layth bin Hammad and a narrator Ghawrak, and both of them are da'if (weak).

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) reports this saying of the Prophet (peace and blessings be upon him): "I have exempted you from zakah on horses and slaves, and zakah is not due on less than two hundred (dirhams)."
Al-Tabarani recorded it in al-Mu'jam al-Saghir and al-Mu'jam al-Awsat. Its chain contains a narrator, Muhammad bin Abi Layla, about whom there is criticism.

Harithah bin Mudarrib narrates: Some people from Syria came to Sayyiduna Umar (may Allah be pleased with him) and said: "We have acquired some wealth, horses and slaves, and we would like zakah to be due from us on them, as a means of purification." Sayyiduna Umar (may Allah be pleased with him) said: "My two masters before me did not do this, that I should do it." Then he consulted the Companions of Sayyiduna Muhammad (peace and blessings be upon him), among whom was Sayyiduna Ali (may Allah be pleased with him). Sayyiduna Ali (may Allah be pleased with him) said: "It would be a good thing, provided it does not become a fixed jizyah that is formally imposed and collected after you as well."
Ahmad, and al-Tabarani in al-Mu'jam al-Kabir, recorded it, and its narrators are thiqat (trustworthy).

Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) and Sayyiduna Hudhayfah bin al-Yaman (may Allah be pleased with him) narrate: The Prophet (peace and blessings be upon him) did not collect zakah on horses and slaves.
Ahmad recorded it; its chain contains a narrator, Abu Bakr bin Abi Maryam, who is da'if (weak) because he suffered from ikhtilat (deterioration of memory).

Sayyiduna Abd al-Rahman bin Samurah (may Allah be pleased with him) reports this saying of the Prophet (peace and blessings be upon him): "Zakah is not due on 'kus'ah', 'jabhah' and 'nukhkhah'." Abu Umar, explaining this, said: "Kus'ah" means donkeys, "jabhah" means horses, and "nukhkhah" means slaves.
Al-Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, Sulayman bin Arqam, who is matruk (abandoned).

Sayyiduna Abu Tha'labah (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) was asked: "Is zakah due on donkeys?" He (peace and blessings be upon him) said: "No, except for one unique, all-encompassing verse: 'Whoever does good the weight of an atom will see it.'"
Al-Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, Sa'id bin Bashir, about whom there is criticism, though he has been declared trustworthy.

Sayyiduna Samurah bin Jundub (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) used to order us not to pay zakah on slaves.
Al-Bazzar recorded it, and there is weakness in its chain.

It is reported from him: The Prophet (peace and blessings be upon him) used to instruct us regarding the slaves of a man or a woman who are for their personal use and whom they do not intend to sell: he used to order us not to pay anything as zakah on them; and he used to order us to pay zakah on the slaves who are kept for sale.
Al-Tabarani recorded it in al-Mu'jam al-Kabir, and Abu Dawud recorded this part of it: "He (peace and blessings be upon him) used to order us to pay zakah only on those slaves whom we had kept ready for sale." There is weakness in the chain of this narration.