وَ رُوِيَ "أَنَّهُ: لاَ تَكُونُ اَلشَّهَادَةُ إِلاَّ بِعِلْمٍ مَنْ شَاءَ كَتَبَ كِتَاباً أَوْ نَقَشَ خَاتَماً ".
It is also narrated that: "Testimony cannot be established except with knowledge. Whoever wishes may write a document or engrave a seal."