Al Hadi, the fourth caliph to rule the Abbasid Caliphate was born on 26th April 764.He succeeded his father Al Mahdi in 785 and ruled till 786 AD.

His short rule was wrought with numerous military conflicts. He was considered an "enlightened ruler", and continued the progressive moves of his Abbasid predecessors.

During the reign, he issued gold and silver coins in the denomination of Dinar and Dirham. These coins were struck at Al Abbasiya, Al Haruniya, Al Muhammadiya, and Ifriqiya.

It depicted the legend ‘la ilah illa / allah wahdahu / la sharik lahu’ within field and ‘bism allah duriba hadha’l-dirham bi’l-haruniyya’ within margin of obverse face.

The reverse bore the inscription ‘ibrahim / muhammad rasul allah / li’l-khalifa al-hadi / mimma amara bihi harun / ibn amir al-mu’minin’ in field and ‘muhammad rasul allah arsalahu bi’l-huda wa din al-haqq li-yuzhirahu ‘ala al-din kullihi wa law kariha al-mushrikun’ in margin area.

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