1. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from Ahmad ibn Muhammad from ibn abu Nasr from ’Isma‘il ibn ‘Umar from Shu’ayb who has said the following
“It is about the case of a man who enters a town where he finds a certain amount of meat, but does not know if it is clean (properly slaughtered) or from dead animals. He (the Imam) said, ‘He can throw it on fire. If it shrinks it is clean (properly slaughtered) but if expands it is from dead animals.”’