Al-Kāfi - Volume 7 > Testimony of a Blind and Speechless
Hadith #1

1- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ أَبِي نَصْرٍ عَنْ ثَعْلَبَةَ بْنِ مَيْمُونٍ عَنْ مُحَمَّدِ بْنِ قَيْسٍ عَنْ أَبِي جَعْفَرٍ (عَلَيْهِ السَّلام) قَالَ سَأَلْتُهُ عَنْ شَهَادَةِ الأعْمَى فَقَالَ نَعَمْ إِذَا أَثْبَتَ.

1. A number of our people have narrated from Sahl ibn Ziyad from Ahmad ibn Muhammad from ibn abu Nasr from Tha‘labah ibn Maymun from Muhammad ibn Qays who has narrated the following: “I once asked abu Ja‘far, ‘Alayhi al-Salam, about the testimony of a blind man. He (the Imam) said, ‘Yes, it is admissible if he has preserved it.’”