Man Lā Yaḥḍuruh al-Faqīh
Hadith 3175287 - وَ رُوِيَ عَنْ مُحَمَّدِ بْنِ قَيْسٍ عَنْ أَبِي جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ قَالَ: "قَضَى أَمِيرُ اَلْمُؤْمِنِينَ عَلَيْهِ اَلسَّلاَمُ فِي رَجُلٍ أُصِيبَ إِحْدَى عَيْنَيْهِ أَنْ تُؤْخَذَ بَيْضَةُ نَعَامَةٍ فَيُمْشَى بِهَا وَ تُوثَقَ عَيْنُهُ اَلصَّحِيحَةُ حَتَّى لاَ يُبْصِرَ بِهَا وَ يَنْتَهِيَ بَصَرُهُ ثُمَّ يُحْسَبَ مَا بَيْنَ مُنْتَهَى بَصَرِ عَيْنِهِ اَلَّتِي أُصِيبَتْ وَ بَيْنَ عَيْنِهِ اَلصَّحِيحَةِ فَيُؤَدَّى بِحِسَابِ ذَلِكَ".
Hadith.5287 - It is narrated from Muhammad ibn Qays from Abu Jafar Imam Muhammad ibn Ali Al-Baqir (as) who said:
"The Commander of the Faithful (as) ruled concerning a man who lost one of his eyes that an ostrich egg should be taken, and the man's healthy eye should be covered so he cannot see with it. Then, his vision should be measured to its limit, and the distance between the range of his injured eye and his healthy eye should be calculated. Compensation should be paid accordingly based on that measurement."