Man Lā Yaḥḍuruh al-Faqīh

Hadith 263
night-prayer
264 - وَقَالَ عَلِيٌّ عَلَيْهِ اَلسَّلاَمُ: «نَتْفُ اَلْإِبْطِ يَنْفِي اَلرَّائِحَةَ اَلْمَكْرُوهَةَ وَ هُوَ طَهُورٌ وَ سُنَّةٌ مِمَّا أَمَرَ بِهِ اَلطَّيِّبُ عَلَيْهِ وَ آلِهِ اَلسَّلاَمُ.
Hadith.264 - Imam Ali ibn Abi Talib (as) said: "Removing armpit hair eliminates unpleasant odors and is a means of purification and a practice (Sunnah) that was commanded by the Good and Pure Prophet (sw)."
Source: Shaykh Muḥammad b. ʿAlī al-Ṣaduq