Abu Ja'far al-Mansur ibn al-Faḍl al-Mustarshid bi'llah (Arabic: أبو جعفر المنصور بن الفضل المسترشد بالله; 1109 – 6 June 1138) usually known by his regnal name Al-Rashid bi'llah (Arabic: الراشد بالله) was the Abbasid caliph in Baghdad from 1135 to 1136.

[1] His full name was Mansur ibn al-Faḍl al-Mustarshid and his Kunya was Abu Jaʿfar.

Like his father, al-Mustarshid, al-Rashid made another failed attempt at independence (militarily) from Seljuk Turks.

Baghdad, well defended by the river and its canals, resisted the attack; but in the end the caliph and Zengi, hopeless of success, escaped to Mosul.

It dates back to the Later Abbasid era of Seljuqs and is located on the northern bank of Zayanderud beside the Shahrestan bridge.