´Narrated Anas bin Malik:` "[The Messenger of Allah (ﷺ)] fixed the time for us paring the mustache, trimming the fingernails, shaving the pubic hairs and plucking the underarm hairs - that we not leave it for more than forty days."
Related hadith on this topic
Explanation & Benefits
Shaykh Dr. Abdur Rahman Freywai
Explanation:
1:
The meaning is that it should not exceed forty days;
this does not mean that it is not permissible within forty days.
Source: Sunan al-Tirmidhi – Majlis ‘Ilmi Dar al-Da‘wah, New Delhi Edition, Page: 2759
Hafiz Muhammad Ameen
14. Commentary:
➊ Day and night are inseparable from each other; therefore, whether one says "day" or "night," it makes no difference.
➋ Forty days is the maximum limit; otherwise, whenever there is a need—meaning if one feels disgust or filth and dirt begin to accumulate—cleanliness may be maintained, whether it concerns hair or nails.
Source: Sunan Nasa'i: Translation and Benefits by Shaykh Hafiz Muhammad Amin Hafizullah, Page: 14
Maulana Ataullah Sajid
Benefit:
Whenever the need is felt, these acts should be performed; however, if there is a delay, it should not exceed forty days, otherwise one will be sinful.
It should not be assumed that cleanliness should not be maintained before forty days.
Source: Commentary on Sunan Ibn Mājah by Mawlānā ‘Atā’ullāh Sājid, Page: 295