Sheikh Mahmud Ustaosmanoglu, also known as *Sheikh Mahmud Effendi*, was one of the most popular Islamic teachers in Turkey. He emphasised the Sunnah and was well-known for having revived many of the Sunnah practices.
Sheikh Effendi became a hafiz at the tender age of 6. He then started studying Arabic and Persian at first, and then went on to study the Islamic Sciences.
He devoted three weeks per-year to teach people across Turkey and made several missionary and educational tours in several countries, including Uzbekistan, India, Germany and the United States. He has a Qur’an tafsir (commentary) named Ruhu’l Furkan in Turkish.
He emphasised service to humanity on the basis of sincerity. Despite being confined to a wheelchair and unable to give talks, he was still sought out for his blessings by people ranging from the layman to the highest powers in the land.