It is narrated from Sayyiduna Adi bin Hatim (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) sent him to his people to collect the zakah. When he had collected their charities, that coincided with the death of the Prophet (peace and blessings be upon him) (that is, he (peace and blessings be upon him) passed away at that very time).
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14252