What is not acceptable in zakah and is not taken by the collector

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) had the rulings of zakah written down and kept them with his sword, or with his will. Then he did not bring them out to the zakah collectors until he departed from this transient world. After his death, Sayyiduna Abu Bakr al-Siddiq (may Allah be pleased with him) continued to act upon it until he too passed away; then Sayyiduna Umar (may Allah be pleased with him) continued to act upon it. (In it was written that) the zakah collector should not collect an old animal or a defective one.

Sayyiduna Ali (may Allah be pleased with him) said: The zakah collector should not collect an old animal, nor a defective (one-eyed) one, nor a young goat that has grown into a billy-goat; but if the zakah collector wishes, (he may collect them).

Sayyiduna Abdullah (may Allah be pleased with him) said: The zakah collector will not collect an old animal, nor a defective one, nor an animal that gives no milk.

Sayyiduna Ibn Umar (may Allah be pleased with them both) said: The zakah collector will not collect an old animal, a defective animal, or an animal that gives no milk; but if he himself wishes, he may take it.

Musa bin Ubaydah said: I heard Sulayman bin Yasar say: A defective animal does not suffice in zakah.

Ja'far bin Maymun said: (The collector of) zakah will not collect a weak (emaciated) animal, a defective animal, a mangy animal, or likewise a lame animal that cannot keep up with the goats.