'''Emir Ambrus''' (634-644) also known as '''Khalid''' (Arabic) '''Amr ''' (Coptic) '''Amrh ''' (Armenian) was the Sadducee-Ishmaelite leader of [[Tachkastan]].
Before he came to power, his Sadducee-Ishmaelite predecessor sent him to conquer the Bakr faction of Al-Hira in 633 forcing the Banu Qabisah to serve him as spies.