[al Bidaya wal Nihaya vol 13 under the people who died in 665 h]
2. When Hulaku Khan ran away with very few people and most of his army was defeated by Berke Khan and his alliance with Malik Zahir.
al-Jūzjānī, who claims to have heard the story, while in Delhi, from the lips of a certain Sayyid Ashraf al-Dīn who had come there from Samarqand.
“The eminent Sayyid thus related, that one of the Christians of Samarqand attained unto the felicity of Islam, and the Musalmans of Samarqand, who are staunch in their faith, paid him great honour and reverence, and conferred great benefits upon him. Unexpectedly, one of the haughty Mongol infidels of China, who possessed power and influence, and the inclinations of which accursed one were towards the Christian faith, arrived at Samarqand. The Christians of that city repaired to that Mongol, and complained saying: ‘ The Musalmans are enjoining our children to turn away from the Christian faith and from serving Jesus—on whom be peace—and calling upon them to follow the religion of Muṣ ṭ afặ 1—on whom be peace— and, in case that gate becomes unclosed, the whole of our dependents will turn away from the Christian faith. By thy power and authority devise a settlement of our case. The Mongol commanded that the youth, who had turned Musalman, should be produced, and they tried with blandishment and kindness, and money and wealth to induce the newly-converted Musalman to recant, but he refused to recant, and put not off from his heart and spirit that garment of freshness—the Muslim faith. The Mongol ruler then turned over a leaf in his temper, and began to speak of severe punishment; and every punishment, which it was in his power to inflict, or his severity to devise, he inflicted upon the youth, who, from his great zeal for the faith of Islam, did not recant, and did not in any way cast away from his hand the sweet draught of religion through the blow of infidel perverseness s. As the youth continued firm in the true faith, and paid no heed to the promises and threats of that depraved company, the accursed Mongol commanded that they should bring the youth to public punishment; and he departed from the world in the felicity of religion—may God reward and requite him !” [Jūzjānī, pp. 448-50. Raverty, pp. 1288-90]
Muslims asked Bereke Khan to help them.
The quote continues
“and the Musalman community in Samarqand were overcome with despondency and consternation in consequence. A petition was got up, and was attested with the testimony of the chief men and credible persons of the Musalman religion dwelling at Samarqand, and we proceeded with that petition to the camp of Baraka Khān, and presented to him an account of the proceedings and disposition of the Christians of that city. Zeal for the Muslim religion was manifested in the mind of that monarch of exemplary faith, and the defence of the truth became predominant in his disposition. After some days, he showed honour to this Sayyid, appointed a body of Turks and confidential persons among the chief Musalmans, and commanded that they should slaughter the Christian company who had committed that dire oppression, and despatch them to hell. When that mandate had been obtained, it was preserved until that wretched sect had assembled in the church, then they seized them all together, and despatched the whole of them to hell, and reduced the church again to bricks.”
[Jūzjānī, pp. 448-50. Raverty, pp. 1288-90, Taken from THE PREACHING OF ISLAM by Thomas Walker Arnold page 171]