Syed Ali Shah Tirmizi

Sayyid Ali Tirmizi (Pashto: سيد علي ترمذي‎), more commonly known as Pir Baba (پير بابا), was a Sufi who settled in Buner (present-day Khyber Pakhtunkhwa, Pakistan) among the Yusufzai Pashtuns. He was probably born in 908 AH (1502 CE), in Fergana (present-day Uzbekistan), of Sayyid descent, died in AH 991 (1583 CE). He was a supporter of the Mughal emperor Akbar, and was an opponent of Bayazid Pir Roshan.

It is claimed that Pir Baba was the son of Sayyid Qanbar Ali, who was in emperor Babur's army and had come down to Delhi as the governor of the Indian state. His mother was of Uzbek origin. Baba was more inclined towards Islamic studies. Baba supposedly married a sister of Daulat Khan a Yusufzai; a respected Pashtun from Buner.

He had 2 sons, Sayyid Habibullāh Shaah and Sayyid Mustafa Shaah.

Anwar Baig Baghi, a descendant of Pir Baba in his 12th generation, made news because "he could read only up to fifth grade but he penned down over 50 books on variety of topics."

Baba's grave and shrine is in Pacha Killay village in the mountainous Buner District of present-day Khyber Pakhtunkhwa.

The shrine was closed by the Taliban temporarily.

The annual Urs or Pilgrimage of Hazrat Pir Baba is celebrated from 24 to 26 Rajab of the Islamic calendar every year in Buner.