The Under arms

Al-Kāfi|Volume 6|Book 7|Chapter 46
عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ أَبِي عَبْدِ اللَّهِ عَنْ مُحَمَّدِ بْنِ عَلِيٍّ عَنْ سَعْدَانَ قَالَ كُنْتُ مَعَ أَبِي بَصِيرٍ فِي الْحَمَّامِ فَرَأَيْتُ أَبَا عَبْدِ اللَّهِ ( عليه السلام ) يَطْلِي إِبْطَهُ فَأَخْبَرْتُ بِذَلِكَ أَبَا بَصِيرٍ فَقَالَ لَهُ جُعِلْتُ فِدَاكَ أَيُّمَا أَفْضَلُ نَتْفُ الْإِبْطِ أَوْ حَلْقُهُ فَقَالَ يَا أَبَا مُحَمَّدٍ إِنَّ نَتْفَ الْإِبْطِ يُوهِي أَوْ يُضْعِفُ احْلِقْهُ .
4. A number of our people have narrated from Ahmad ibn abu as from Muhammad ibn Ali from Sa‘dan who has said the following: “I once was with abu Basir in a bathhouse and I saw abu ‘Abd Allah عليه السلام, applying lime on his underarms. I informed abu Basir about it who asked saying, ‘I pray to Allah to keep my soul in service for your cause, which is better; pulling out or shaving the hairs of the underarms?’ He (the Imam) said, ‘O abu Muhammad pulling out the hairs of the underarms weakens (the shoulders) so you must shave them.’”
  • Allamah Baqir al-Majlisi
    Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (2/412)
  • Shaykh Baqir al-Behbudi
    Ṣaḥīḥ al-Kāfī