Took office of Dai: 546 Hijri. Date of death: 16-Shabaan-557 Hijri (31 July 1162 AD) Place of burial: Sanaa Term of office: Over 11 years. Mazoon: Syyedi Ali bin Hasan (d. 5 Ramdaan 554 Hijri), Syyedi Hatim. Mukasir: Muhammad bin Tahir Books written in his era by his Mazoon Syyed Ali bin Hasan:
Risaalat ul Baas
Behes aalal Firqatin Nizaariyah
Tohfatut Taalib
Below books were written by Dai Syyedna Ibrahim:
Al Ibtedaa wal Intehaa
Risaalatush Sharifah fee Maanil Lateefah
Kanz ul Walad (comprising 14 risala)
Tawheed
Ibtedaa
Mambaas (Qayamat)
Mambaas ul Awwal
Mambaasus Sani
Hayoola (Earth)
Zuhoor ul Mawaaleed (minerals, vegitation, animals)