Darul Uloom Deoband
Hasan served as the principal of the Darul Uloom Deoband and founded organisations such as the Jamiatul Ansar and the Nizaratul Maarif. He wrote a translation of the Quran in Urdu and authored books such as "Adilla-e-Kāmilah", "Īzah al-adillah", "Ahsan al-Qirā" and "Jahd al-Muqil". He taught hadith at the Darul Uloom Deoband and copyedited the "Sunan Abu Dawud". His major students include Ashraf Ali Thanwi, Anwar Shah Kashmiri, Hussain Ahmad Madani, Kifayatullah Dehlawi, Sanaullah Amritsari and Ubaidullah Sindhi.