Al-Kāfi

Hadith 590
washing-deceased
3ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنِ ابْنِ مَحْبُوبٍ عَنْ إِبْرَاهِيمَ بْنِ مِهْزَمٍ عَنْ طَلْحَةَ بْنِ زَيْدٍ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ كُرِهَ أَنْ يُقَصَّ مِنَ الْمَيِّتِ ظُفُرٌ أَوْ يُقَصَّ لَهُ شَعْرٌ أَوْ تُحْلَقَ لَهُ عَانَةٌ أَوْ يُغْمَضَ لَهُ مَفْصِلٌ.
3. A number of our people have narrated from Sahl ibn Ziyad from ibn Mahbub from ‘Abd al-Rahman ibn Mahziyar from Talhah ibn Zayd who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘Cutting the fingernails of a dead person, trimming hairs or shaving pubic hairs or softening body joints are detested matters.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī