@article{
  author = {Maleki, M.Amin, keshavarz, ali, asgari, alireza},
  title = {ascertainment of excuse and impossibility of the principal witness: Rule-making condition for accepting hearsay evidence},
  journal = {Journal of  Islamic Jurisprudence and  Law},
  year = {2021},
  volume = {14},
  number = {27},
  pages = {1-25},
  doi = {}
}