What is the ruling on lending (Qard) male human beings (slaves/servants)?

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Imam Ahmad disliked the lending of male human beings. This dislike can be interpreted as being one of detestation (*tanzihi*), rendering the loan valid. This view is held by Ibn Jurayj and Al-Muzani because property that can be established as a debt obligation (*dhimma*) through a forward contract (*salam*) can also be loaned, similar to all other animals. Alternatively, the dislike could be one of prohibition (*tahrim*), rendering the loan invalid. Al-Qadi chose this latter interpretation because the lending of human beings has not been transmitted, nor is it considered a necessity (*marifaq*).