After his father's death, he studied mathematics under his father's tutor, Muhammad Niamatullah. He taught for a while in Hyderabad. Subsequently, he left for Lucknow where he remained for the rest of his life.[4]
The Grand Mufti of Makkah Ahmad Zayni Dahlan granted him permission for all isnad (chains of narration) from Al Hidayah of Burhan al-Din al-Marghinani, Muhammad Ibn Abdullah Hanbali of Makkah and Muhammad Ibn Muhammad Al-Gharbi. Abdul Ghani Dehlwi also granted him permission for various isnad.[4]
^Dr Waliuddin Nadwi. Allama Abd al-Hayy Lakhnawi: Hayat-o-Khidmat (in Urdu). Translated by Muhammad Rafey Azmi Nadwi. Markaz ash-Shaykh Abul Hasan Ali Nadwi, Muzaffarpur, Azamgarh. p. 87.
^ abDr Waliuddin Nadwi. Allama Abd al-Hayy Lakhnawi: Hayat-o-Khidmat (in Urdu). Translated by Muhammad Rafey Azmi Nadwi. Markaz ash-Shaykh Abul Hasan Ali Nadwi, Muzaffarpur, Azamgarh. pp. 96–97.
^Dr Waliuddin Nadwi. Allama Abd al-Hayy Lakhnawi: Hayat-o-Khidmat (in Urdu). Translated by Muhammad Rafey Azmi Nadwi. Markaz ash-Shaykh Abul Hasan Ali Nadwi, Muzaffarpur, Azamgarh. p. 97.
^Maulana Abdul Hayy Lakhnawi. Gheebat Kya Hai? (in Urdu). Maktaba Aarifeen, Ruqayya Building, Pakistan Chowk, Karachi. Archived from the original on 12 November 2011. Retrieved 22 April 2019.