A number of our people have narrated from Ahmad ibn Muhammad ibn ‘Isa from al-Hajjal from Tha‘laba ibn Maymun from ‘Abd al-A‘la ibn ’A‘yan who said the following
“Once I asked abu ‘Abd Allah (a.s.), ‘If a person does not know, will he be held responsible?’ He said, ‘No, he will not be held responsible.’”