The Messenger of Allah ﷺ fixed forty days to shave the pubes, paring the nails, clipping the moustaches, and plucking the hair under the armpit. Abu Dawud said: Ja'far b. Sulaiman transmitted it from Abu 'Imran on the authority of Anas. In this version he did not mention the Prophet ﷺ. He said: Forty days were fixed for us. This is a more correct version.
وَقَّتَ لَنَا رَسُولُ اللَّهِ ﷺ حَلْقَ الْعَانَةِ وَتَقْلِيمَ الأَظْفَارِ وَقَصَّ الشَّارِبِ وَنَتْفَ الإِبْطِ أَرْبَعِينَ يَوْمًا مَرَّةً