Some of the children of al-Ala' ibn al-Hadrami said: Al-Ala' ibn al-Hadrami was the governor of the Prophet ﷺ at al-Bahrayn, and when he wrote to him he began with his won name.  

أَنَّ الْعَلاَءَ بْنَ الْحَضْرَمِيِّ كَانَ عَامِلَ النَّبِيِّ ﷺ عَلَى الْبَحْرَيْنِ فَكَانَ إِذَا كَتَبَ إِلَيْهِ بَدَأَ بِنَفْسِهِ  

Al-Ala b. al-Hadrami wrote to the prophet (May peace be upon him), and he began with his name.  

أَنَّهُ كَتَبَ إِلَى النَّبِيِّ ﷺ فَبَدَأَ بِاسْمِهِ