Muhammad ibn Lubb ibn Musa (Arabic: محمد بن لّب بن موسى, k. outskirts of Zaragoza, 898), was a Muslim lord who at different times held Zaragoza and Larida,[1][2] on the Upper March of Al-Andalus.
[1][2] In 882, he had already conquered Zaragoza, where attempted to rule independent of Córdoba lord,[1][2] but faced with constant pressure of the Arab Banu Tujib clan (Arabic: بنو تجيب), he was forced to sell Zaragoza to the emir by 885.
[1][2] In 897, Muhammad conquered Toledo,[2] and in 898 he initiated a new military campaign to recover Zaragoza, but he was killed during its siege,[1] surprised by an enemy warrior while he was resting, on October 8.
His son Yunus briefly controlled Monzón but was unable to hold it against Muhammad al-Tawil.
Quarrels among Muhammad ibn Lubb's sons and grandchildren, along with pressure from the Kingdom of Pamplona to the north and the Emirate of Córdoba to the south would lead to the complete dismantling of Banu Qasi power throughout the Ebro valley.