Al-Kāfi

Hadith 678
funeral-prayer
5ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ أَبِي نَصْرٍ عَنْ بَعْضِ أَصْحَابِنَا عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ يُصَلِّي عَلَى الْجِنَازَةِ أَوْلَى النَّاسِ بِهَا أَوْ يَأْمُرُ مَنْ يُحِبُّ.
5. A number of our people have narrated from Sahl ibn Ziyad Ahmad ibn Muhammad from ibn abu Nasr from certain persons of our people who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘The nearest relative performs Salah (prayer) for a deceased or one whom such relative likes to perform Salah (prayer).”’
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī