The Kinda, or Kindah, (كِنْدَة, Ancient South Arabian script: 𐩫𐩬𐩵𐩩) were an Arab tribe from South Arabia. Originating in the region to the west of Hadramawt, the Kinda tribe is known to have served the Sabaean Kingdom as Bedouin auxiliaries as early as the 3rd century, later allying themselves with the Himyarite Kingdom under the Jewish king Dhu Nuwas (early 6th century). In the mid-5th century, the tribe established its own kingdom over the Arab tribal confederation of Ma'add in northern and central Arabia, known as the Kingdom of Kinda, which lasted until the mid-6th century. By this point its rulers had all been killed or prompted to flee for Hadramawt. There, the bulk of the tribe had continued to reside and dominate. While many of the tribesmen in Hadramawt likely embraced Judaism with the Himyarites, many of those in central and northern Arabia embraced Christianity. After accepting Islam during the lifetime of the Islamic prophet Muhammad (died 632), their leading families revolted against the early Muslim state during the Ridda wars (632–633). The tribe was dealt a heavy blow, but surviving leaders, such as al-Ash'ath ibn Qays, repented and played important roles in the early Muslim conquests. Members of the Kinda continued to serve in prominent positions throughout the early centuries of the Caliphate. The Kinda's genealogy, real or perceived, traced them back to the semi-legendary Kahlan. The name 'Kinda' was a nickname for the tribe's progenitor, Thawr ibn Ufayr. His sons were the progenitors of the Kinda's principle branches, the Banu Mu'awiya, the Sakun and the Sakasik. The latter two are often grouped together in the literary sources as the Ashras group. The Banu Mu'awiya was the leading branch of the tribe. From its Banu Amr subbranch descended the royal households of Kinda, namely the Banu Akil al-Murar in Najd and the Yamama in central Arabia (see below) and the Banu Wali'a in the Hadhramawt in southern Arabia. After the advent of Islam, preeminent leadership of the tribe passed to another division of the Banu Mu'awiya, the Banu al-Harith al-Asghar.