Ibn an-Naqib al-Misri: Umdat al-Salik;
(Reliance of the traveller) (d1367)
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Umdat as-Salik wa 'Uddat an-Nasik (Reliance of the Traveller and Tools of the Worshipper, also commonly known by its shorter title Reliance of the Traveller) is a classical manual of fiqh for the Shafi'i school of Islamic jurisprudence. The author of the main text is 14th-century scholar Shihabuddin Abu al-'Abbas Ahmad ibn an-Naqib al-Misri (AD 1302–1367). Al-Misri based his work on the previous Shafi'i works of Imam Nawawi and Imam Abu Ishaq as-Shirazi, following the order of Shirazi's al-Muhadhdhab (The Rarefaction) and the conclusions of Nawawi's Minhaj at-Talibin (The Seeker's Road).
Taken from: Reliance of the traveller: the classic manual of Islamic sacred law Umdat al-salik by Ahmad ibn Lu’lu’ Ibn al-Naqib, Noah Ha Mim Keller
 
It is permissible to eat the oryx, zebra, hyena, fox, rabbit, porcupine, daman (a Syrian rock badger), deer, ostrich, or horse.
It is recommended to slaughter camels by thrusting the knife (O: into the hollow at the base of the neck (A: between the
two collarbones) above the chest so that one severs them (A: the windpipe and gullet) in this concavity, since it is easier than cutting the throat, for it seeds the exit of the spirit from the body by bypassing the length of the neck, being the preferable way to slaughter any animal with a long neck, such as a duck, goose, ostrich, or giraffe), with the camel left standing one foreleg bound up.
In the Hanafi school (1), the hair of an unslaughtered dead animal (other than swine), its bones, nails (hoofs), horns, rennet and all parts unimbued with life while it was alive (A: including ivory) are pure (tahir). That which is separated from a living animal is considered as if from the unslaughtered dead of that animal.

(about slander) Father refers to saying such things as that his father is corrupt, his father is an Indian, Nabatean (2),
African (zanj), cobbler, draper, carpenter, blacksmith or weaver (n: if mentioned derogatorily).

(1) Hanafi school: is one of the four major Sunni schools  of Islamic jurisprudence (fiqh). Founded by the 8th-century Kufan scholar, Abu Ḥanifa an-Nu‘man ibn Thabit, a tabi‘i of Persian origin.

(2) Nabatean: were an ancient Arab people who inhabited northern Arabia and the southern Levant.