Muflih al-Saji (Arabic: مفلح الساجي) was a Muslim commander and governor of Adharbayjan (Iranian Azerbaijan) from c. 929 to c. 935.
As his nisba indicates, he was a military slave of the Sajid ruler of Adharbayjan, Yusuf ibn Abi'l-Saj.
[1] After Yusuf died in 928, he was succeeded briefly as ruler by his nephew, and then by Wasif al-Shirvani in 929 as governor of Adharbayjan for the Abbasid Caliphate.
[1][4][5] In 931, the Byzantines were engaged in southern Armenia, aiding the ruler of Vaspurakan, Gagik I, who had rallied the local Armenian princes and allied himself with the Byzantines against the local Muslim emirates; the Christian forces raided the Kaysite emirate and razed Khliat and Berkri to the ground, before marching into Upper Mesopotamia and capturing Samosata.
Learning of this, Muflih assembled a "large army" and himself invaded Armenia, defeating Gagik and his Byzantine allies in a battle that according to Ibn al-Athir cost 100,000 Armenians their lives.