his sermons and lectures are recorded and are widely available. He has also authored two books, The Salah of a Believer in the Quran and Sunnah and 'Causes of Disunity' One of Riyadh ul Haq's most notable contributions to Islamic scholarship has been his detailed commentary of 'The Abridged Sahih al-Bukhari'. which is a comprehensive collection of ḥadīth (sayings and actions of Muhammad). This collection is considered the most important book after the Qur'an for Sunni Muslims. At the time that ul Haq began these lectures in 2001 it was noted that this was the first time that these aḥadīth had been taught in English in a systemic, detailed and thorough manner to the lay public. He has always argued that the hadith are an integral part of Islam and that fiqh (Islamic jurisprudence) cannot be understood without the hadith. Spirituality Alongside teaching of hadith, Riyadh ul Haq focuses on spirituality (tazkiyah). His spiritual teachings, which date back around 20 years, focus on reformation of the character and purification of the soul. His spiritual chain (silsila) is well-documented. Short excerpts from his spiritual discourses are published online. These make it clear that his spiritual teachings cover a range of topics including social etiquettes and responsibility, love, and family ties. His emphasis on tazkiyah has led to him being labelled as a 'Sufi' and attacked by madkhali groups. Charitable Work His expertise and experience is sought by many charities, organisations and bodies for whom he regularly lectures for. These include assisting with humanitarian appeals such as Ummah Welfare Trust's, 'Cries of the Ummah' appeal, as well as local community work within Leicestershire (for example Leicestershire Youth Awards 2008 with the Federation of Muslim Organisations). He has also been involved in assisting the work of Halal Monitoring Committee (HMC). Influence and international recognition Ul Haq was listed in the 2010 Third Edition of 'The 500 Most Influential Muslims' published by Royal Islamic Strategic Studies Centre. It states: "Abu Yusuf Riyadh ul Haq is a very influential speaker and leading Deobandi scholar in the UK. He has been markedly influential through his work with the Al Kawthar Academy in Leicester. Al Kawthar is a leading Islamic educational institution at the forefront of knowledge proliferation through diverse media forms." Ul Haq was also listed in the 2012 Second Edition of 'The Muslim 500: The World's 500 Most Influential Muslims 2012' Media Portrayal Andrew Norfolk