His son Muhammad dispersed them throughout the country, and some of them settled in the Souss region.

As for the lineage of Ali bin Abi Talib mentioned therein, they moved to the Maghreb or spread out.

From a temporal perspective, after examination, it becomes clear to us that the period between the death of Al-Hasan bin Ali in the year 474 AH and the death of Ibn Tumart in the year 524 AH is 50 years. This period, if we consider the average lifespan to range between 25 and 30 years, would mean each generation spans between 12 and 16 years.

If we present Ibn Tumart's lineage through his four routes against these two measures, it becomes clear to us that the first and second routes are considered very weak. This is because some of his biographers, as mentioned, indicate that Muhammad bin Al-Hasan had no offspring. Historical books also do not mention any widespread descendants in the Maghreb of any Talib who entered it. The fourth route can also be considered invalid, as it only became clear after many generations, and the generations are few.

As for the third route, it is supported by both measures. From a temporal perspective, this route includes sixteen generations after Al-Hasan bin Ali, which is possible as explained. From a human geographical perspective, there are testimonies of the proliferation of the descendants of Sulayhan in the Maghreb and specifically in the Souss region. Thus, this noble lineage attributed to Ibn Tumart becomes theoretically possible. This does not negate the possibility of his lineage being Berber Masmuda, which gave him authentic Berber characteristics. This lineage may have been unknown to the glories of the Berbers.