Did the Prophet possess the nisab amount upon which a full year had passed, such that it became obligatory for him to pay zakat?

There is no explicit evidence indicating whether the Prophet, may Allah’s prayers and peace be upon him, possessed a zakatable amount (nisab (definition)) that remained with him for a full year (hawl), because he did not hoard money. His circumstances varied; sometimes he would save a year's worth of provisions for his family from the spoils of war, then spend the rest in the way of Allah before the year ended. This is why he passed away with his shield mortgaged for barley he had borrowed for his family, which indicates that he did not possess a zakatable amount that remained with him for a full year.