Imaam Bukhaari (rahimahullah) passed away on the night of Eid-ul-Fitr in the year 256 AH. That year, Eid-ul-Fitr fell on a Saturday, and hence Imaam Bukhaari (rahimahullah) passed away the previous night. He was buried on the day of eid, after the zuhr salaah, and he was sixty-two years old at the time of his demise.