He first preached in Mecca and then travelled to Egypt, and hence to Eritrea and Zeila.[11] He then later settled in the area of Saba' in modern-day Yemen where he married the sister of the king of the Al Haqar clan.[12] She bore him two sons; Dir'an and Shareef, who's descendants are the Al Dir'an and Al-Ashraf clans respectively.[12][13] Sheikh Ishaaq later settled in the Al-Jawf region in northern Yemen where he married once again and had a son, Mansur, who is the forefather of the Al Mansur clan in the Al-Jawf region.