His granduncle was the ascetic and poet Abdul Qadir (d. 1913), and his great-grandfather was the renewer Sayyid Muhammad (d. 1316), widely known as "Imam al-‘Arus" or "Mappillai Lebbai Alim".
[3] Shuaib received training from his father in Sufism, until he attained qualification as a murshid and the rank of a spiritual master in the Sufi tradition.
[1] Shuaib's primary research focus was history of Islam and Muslims in the Arwi region (modern day South India and Sri Lanka).
His findings were the bedrock for his master's thesis and research doctorate which culminated in the publishing of the 880-page work, "Arabic, Arwi and Persian in Sarandib and Tamil Nadu – A study of the Contributions of Sri Lanka and Tamil Nadu to Arabic, Arwi, Persian and Urdu Languages, Literature and Education".
It also featured a critical commentary of the Mawlid composition of Imam al-‘Arus Sayyid Muhammad b. Ahmad Lebbai entitled, "Minhat al-Sarandīb fī Madh al-Habīb".
[11] In 2013, Shuaib was listed for the first time in The 500 Most Influential Muslims by Georgetown University’s Prince Alwaleed Bin-Talal Center for Muslim-Christian Understanding and the Royal Islamic Strategic Studies Centre of Jordan.