I took a letter from Thumamah bin ‘Abd Allah bin Anas. He presumed that Abu Bakr had written it for Anas when he sent him (to Al Bahrain) as a collector of zakat. This (letter) was stamped with the stamp of the Messenger of Allah(saws) and was written by Abu Bakr for him(Anas). This letter goes “This is the obligatory sadaqah(zakat) which the Messenger of Allah(saws) imposed on Muslims which Allah commanded his Prophet(saws) to impose. Those Muslims who are asked for the proper amount must give it, but those who are asked for more than that must not give it. For less than twenty five Camels a goat is to be given for every five Camels. When they reach twenty five to thirty five, a she Camel in her second year is to be given. If there is no she Camel in her second year, a male Camel in its third year is to be given. When they reach thirty six to forty five, a she Camel in her third year is to be given. When they reach forty six to sixty , a she Camel in her fourth year which is ready to be covered by a stallion is to be given. When they reach sixty one to seventy five, a she Camel in her fifth year is to be given. When they reach seventy six to ninety, two she Camel in their third year are to be given. When they reach ninety one to a hundred and twenty, two she Camels in their fourth year are ready to be covered by a stallion are to be given. When they exceed a hundred and twenty, a she Camel in her third year is to be given for every forty and a she Camel in her fourth year for every fifty(Camels). In case the ages of the Camel vary in the payment of obligatory sadaqah(zakat) If anyone whose Camels reach the number on which a she Camel in her fifth year is payable does not possess one but possess one in her fourth year, that will be accepted from him along with two goats if he can conveniently give them, or else twenty dirhams. If anyone whose Camels reach the number on which a she Camel in her fourth year is payable does not possess but possesses one in her fifth year, that will be accepted from him, and the collector must give him twenty dirhams or two goats. If anyone whose Camels reach the number on which a she Camel in her fourth year is payable possesses only one in her third year, that will be accepted from him.”

Abu Dawud said From here I could not retain accurately from Musa as I liked “And he must give along with it two goats if he can conveniently give them, or else twenty dirhams. If anyone whose Camels reach ...

These are the types of charity (zakah) that the Messenger of Allah (ﷺ) made obligatory upon the Muslims and which Allah, may He be glorified and exalted, enjoined upon the Messenger of Allah (ﷺ). Whoever among the Muslims is asked to pay it in the proper manner, let him give it; whoever is asked for more than that, let him not give it. For less than twenty-five camels, for each five, one sheep (should be given). If the number reaches twenty-five, then one she-camel in its second year (should be given), up to thirty-five. If there is no she-camel in its second year, then a he-camel in its third year (may be given). If the number reaches thirty-six, then a she-camel in its third year (should be given), up to forty-five. If the number reaches forty-six, then a she-camel in its fourth year that has been bred to a stallion camel should be given, up to sixty, If the number reaches sixty-one, then a she-camel in its fifth year (should be given), up to seventy five. If the number reaches seventy-six, then two she-camels in their second year (should be given), up to ninety. If the number reaches ninety-one, then two she camels in their fourth year that have been bred to a stallion camel should be given, up to one hundred and twenty. If the number is more than one hundred and twenty, then for every forty camels, a she-camel limits third year should be given and for every fifty a she-camel in its fourth year. If the ages of the camels for zakah differ, if what is due is a she-camel in its fifth year but he does not own such a camel, but he has a she-camel in its fourth year, then that will be accepted from him and he should add to it two sheep, if available, or twenty dirhams. If what is due from him is a she-camel in its fourth year and he only has a she camel in its fifth year, it should be accepted from him and the zakat collector should give him back twenty dirhams or two sheep. If what is due from him is a shecamel in its fourth year, but he does not have such a cameland he has a she-camel in its third year, then it should be accepted from him and he should add to it two sheep, is available, or twenty dirhams. If what is due from him is a she camel in its second year, but he only has a he-camel in its third year, then it should be accepted from him and nothing should be added to it. If he has only four camels, no zakah is due unless the owner wants to give it. With regard to zakah on sheep ...

“My maternal aunt Hind asked the son of Abu Hala, who was a describer of the finery of Allah’s Messenger (Allah bless him and give him peace), to describe something of it that would be of interest to me, so he said: Allah’s Messenger (Allah bless him and give him peace) was an honored dignitary, whose face shone with the radiance of the moon on the night of the full moon. He was taller than medium-sized, and shorter than the slender giant. His head was grand and impressive, with loosely curled hair. If his forelock became divided, he would part it. Otherwise his hair would not cross over his earlobes, and he would let it grow plentiful and long. He was bright of color, broad of forehead, endowed with arched eyebrows, perfect without being conjoined, with a vein between them that anger would cause to pulsate. The bridge of his nose was curved. He had a light that would rise over him, and someone who did not reflect on him would consider him haughty. He was thickly bearded, endowed with smooth cheeks, a wide mouth, cleft teeth, and a delicate strip of hair from the top of the chest to the navel. It was as if his neck were the neck of a statue shaped in pure silver. He was well proportioned in physique, firmly cohesive, with the stomach and the breast in even balance. He was wide-chested, broad-shouldered, endowed with stout limbs and very shiny bare skin. Between the top of the chest and the navel by a strip of hair like a line of writing, while his breasts and stomach were bare apart from that. He had hair on his arms and shoulders and the upper parts of his chest. His forearms were long. He had a sensitive touch of the hand. The palms of his hands and the soles of his feet were thickset. His extremities were well formed [sa’il (or he may have said sha’il)]. The hollows of his soles were very deep-set. His feet were so smooth that water bounced off them. When he left a place, he would go away striding decisively. He would tread inclining forward and walk comfortably. His gait was brisk. When he walked, it was as if he were descending a declivity, and when he looked around, he looked around altogether. He lowered his eyesight, and he spent more time looking at the ground than he did looking at the sky. The majority of his looking was observation. He would urge his Companions to proceed ahead of him, and he would be the first to greet anyone he encountered with the salutation ...