There is a legend that Isma'il is the same Isma'il ibn Ibrahim al-Jaberti al-Aqeeli, the 15th century Sufi saint, who is buried in Zabid.

Omar Mohamud Jaberti Doesn't exist it is Fake entry by a disrespectful person.

Some of his History is written in Kitab aldhu'u Lami' by Al Sakhawi Chapter 2 (Juzu' 2) Page 282 Nr 893.

Also ib Kitab Al Shajaratu Zakiya Ansab Bani Hashim by Liwa Rukn / Yusuf Jamalu leyl, describing of him and some of his Descendants whom became big tribes in pages 345-346.

Also Kitab Alli'ali Al suniyah fil A'qab Alaqeiliyah by the Aqeiliyon Head of genea, logy Sheikh Ahmad bin Ali Al Rajhi AlAqeili describing of him and some of his Descendants whom became big tribes in Chapter 2 pages 113-116