Thabit ibn Qays
Thabit ibn Qays ibn Shammas al-Harithi al-Khazraji was a companion of Muhammad, who served as one of his orators and scribes, and a leader of the Ansar, the natives of Medina who gave Muhammad safe haven in their city and were among the earliest converts to Islam. Following the Muslim victory at Dhu al-Qassah at the beginning of the Ridda wars in 632, Caliph Abu Bakr appointed Thabit commander of the Ansarite troops. He was placed under the overall command of Khalid ibn al-Walid. He participated in the subsequent battles of Buzakha (632 ) against the Asad and Ghatafan nomads under Tulayha and Aqraba (633) against the sedentary Hanifa tribe under Musaylima. At Aqraba he recommended to Khalid that the exclusion of nomad contingents in their army as he blamed them for the repeated, failed attempts to overcome the Hanifa warriors. Khalid accepted this counsel and the Muslims afterward routed and killed Musaylima. Alternatively, Chinese Muslims hold that he was involved in the introduction of Islam to China during the Tang dynasty period when he reached China over land and died of in the western Chinese province of Xinjiang. The title of Khatib of  Islam. Hazrat Thabit bin Qais Ansari (RA) who used to attend various meetings as a representative of the Holy Prophet (PBUH), the title "Khatib-e-Islam" was first used for him. He was also remembered by the titles of Khatib-ul-Ansar and Khatib-e-Rasool-e-Karim.