Sheikh Ishaq was one of the scholars that crossed the sea from Arabia to the Horn of Africa to spread Islam around 12th to 13th century.

Hence, Sheikh Ishaaq married two local women in Somaliland that left him eight sons, one of them being Ismail (Garhajis).

One is regularly presented as 'Ahmad Guray, the Somali' (...) identified as Ahmad Gurey Xuseyn, chief of the Habar Magaadle.

On a paper yet carefully preserved in the tomb, and bearing the sign-manual of Belat [Bilal], the slave of one of the early khaleefehs, fresh oaths of lasting friendship and lasting alliances are made...In the season of 1846 this relic was brought to Berbera in charge of the Haber Gerhajis, and on it the rival tribes of Aial Ahmed and Aial Yunus swore to bury all animosity and live as brethren.

[12]Apart from their equestrian skills, the Eidagalle are also famed for their eloquence in traditional Somali poetry (gabay), producing many famous poets such as Xasan Tarabi and Elmi Boodhari.

Eidagalle merchants procured various goods from the Somali Region in present-day Ethiopia, such as livestock, acacia gum, myrrh and ghee, which were subsequently exported to Southern Arabia.

[15][16] Somalis of the Habr Gerhajis tribe arrive from Ogadain with feathers, myrrh, gum, sheep, cattle, and ghee, carrying away in exchange piece goods; they also make four trips in the season; they remain for less than a month, and during their stay reside with fellow-tribesmen, taking their meals in the mokhbâzah or eating-house.

After witnessing his leadership skills, noble conduct and valiance, the Isaaq chiefs recognized him as their Grand Sultan but Abdi instead put forward his son Guled.

Sultan Guled ruled the Isaaq from the 1750s up until his death in the early 19th century, where he was succeeded by his eldest son Farah.