Ibn Yāsīn that their weaker members should travel to the Sūs region (1) and collect the zakāt. Seven hundred of them reached Sijilmāsa (2) and asked for the alms; the townspeople gathered a sum for them and they returned with it.
The Sahara then became too confining for them, and they decided to proclaim the truth openly and march to al-Andalus for jihad. They made for the Sūs, whose inhabitants fought them; ʿAbd Allah b. Yāsīn was killed and Abū Bakr b. ʿUmar was put to flight. He soon mustered and assembled his forces, advanced, met them in battle, and was victorious, seizing their goods and bolstering his own morale.
He next encamped before Sijilmāsa and demanded zakāt from its people. The local ruler, Masʿūd, came out to fight him; war flared between them repeatedly until Masʿūd was killed and Sijilmāsa fell. Abū Bakr appointed his cousin Yūsuf b. Tāshfīn to govern the city, and he ruled well. That took place in 453 AH.
King Abū Bakr then returned to the desert, later came back to Sijilmāsa, had the Friday sermon delivered in his own name, installed his nephew there, and dispatched the army under Ibn Tāshfīn, who conquered the Sūs. Ibn Tāshfīn was a man of imposing bearing, brave and politically astute (3).
King Abū Bakr al-Lamṭūnī died in the Sahara in 462 AH (4); after him Ibn Tāshfīn assumed power, and the nations submitted to him (5).
Among the Berber tribes the first to rule were the Ṣinhāja, then the Kutāma, followed by the Lamṭūna, the Maṣmūda, and finally the Zanāta.
Ibn Durayd reports that the Kutāma, the Lamṭūna and the Hawwāra were of Ḥimyarite stock, whereas the rest were from