Sunan Ibn Majah 648
سنن ابن ماجه#648SahihIt was narrated that Umm Salamah said:"At the time of the Messenger of Allah, women in postnatal bleeding (after childbirth) used to wait for forty days, and we used to put Wars on our faces because of freckles
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniHasan Sahih
Muhammad Fouad Abd al-BaqiHasan Sahih
Shuaib Al ArnautHasan Lighairihi
Zubair Ali ZaiHasan
In-book reference: 1:382