According to another story, mirza Hassan lahiji, Fayyad’s son, took his father’s place in ma sumiyyah school due to his students insistence and continued his lessons. Mirza Hassan died in 1049 AH; therefore, at the time of his father’s death, he must have reached an age at which he was knowledgeable enough to be qualified for teaching and considered superior to his father’s students. If his happened when he was at least 23 years old, we can conclude again that Fayyad died in 1072 AH.