Robert E. Howard,
The Country of the Knife
(1936)
“ Shirkuh shot the man through the body. He staggered to a rolling fall that carried him to the edge of the block. There he lifted himself on an elbow, and pointed at Shirkuh. Blood spattered the Shinwari's beard as he croaked in the sudden silence:"I swear by the beard of the Prophet, he is no Moslem!""He is El Borak!"A shudder passed over the crowd."Obey the customs!" came Ali Shah's sardonic voice in the unnatural stillness. "You killed your emir because of a small custom. There stands a man who has violated the greatest one-your enemy, El Borak!" ”
