Taqiuddin bin Ibrahim bin Mustafa bin Ismail bin Yusuf an -Nabahani (founder of Hizb ut Tahrir) belonged to Bani Nabahan and he came from a village by the name of Ajzam in Haifa in Northern Palestine. Sheikh an-Nabahani was born in the village of Ajzam in 1332 Hijri or 1914 CE. His family was known for knowledge, practice of Deen and Taqwa. His father, Sheikh Ibrahim, was a jurist and a scholar of ‘Uloom e Sharai in the Ministry of Ma’arif (Knowledge and Arts). His mother was also an expert in ‘Uloom e Sharai,’ which she obtained from her father Sheikh Yusuf an-Nabahani.
Different narrations mention his maternal grandfather Sheikh Yusuf Nabahani in these words: Yusuf bin Ismail bin Yusuf bin Hassan bin Mohammad Al Nabahani Al Shafii’ – his kunya (nickname) was ‘Abu al Mahasin’ and he was a poet, Sufi and a literary person. He was considered amongst one of the best judges of his time. He served as a judge in the area of Jenin affiliated with Nablus. Afterwards, he transferred to Istanbul where he served as a judge in the area of Kavi Sanjaq in Mosul. Then he was appointed as the head of the royal court in Al -Azqya and Al -Quds. And then he took charge of the Court of Rights of Beirut. He has authored forty-eight books.