From Sahih Bukhari (Hadith 5246):
Narrated Jabir bin `Abdullah:The Prophet (ﷺ) said, "If you enter (your town) at night (after coming from a journey), do not enter upon your family till the woman whose husband was absent (from the house) shaves her pubic hair and the woman with unkempt hair, combs her hair" Allah's Messenger (ﷺ) further said, "(O Jabir!) Seek to have offspring, seek to have offspring
Reference: Bukhari 5246