Umm al-Mu’minin Sayyida Umm Salama (may Allah be pleased with her) said: I was with the Messenger of Allah (peace and blessings be upon him) under one blanket when I got my period. I stood up, and he (peace be upon him) said: “What happened?” I replied: The same thing has happened to me that happens to women. He said: “This is something Allah has decreed for the daughters of Adam.” Umm Salama (may Allah be pleased with her) said: So I got up and put myself in order, then I returned (to his pure company), and the Messenger of Allah (peace and blessings be upon him) said: “Come into the blanket.” So I entered.
Hadith Referenceسنن دارمي / من كتاب الطهارة / 1080
Hadith Takhrijاس حدیث کی سند حسن ہے۔ دیکھئے: [مسند أحمد 294/6] ، [ابن ماجه 637] ، [مسند أبى يعلی 426/12] ، [مصنف ابن أبى شيبه 254/4] و [مصنف عبدالرزاق 1235]
Brief Explanation
(This is the explanation of Hadiths 1071 to 1080)
This hadith sheds light on the excellent conduct (husn-e-mu'asharat) of the Messenger of Allah sallallahu alayhi wa sallam, and in it there is instruction for the Ummah. The Prophet sallallahu alayhi wa sallam did so for the sake of teaching: «﴿وَمَايَنْطِقُعَنِالْهَوَى . إِنْهُوَإِلَّاوَحْيٌيُوحَى﴾ [النجم : 3 ، 4]» meaning: "You only convey that which is revealed to you; you do not speak from your own self."
From this, it is understood that there is no harm in lying down with a menstruating (ha'idha) woman under the same garment or blanket. This is an ease and a great concession for the Ummah.
Allah Ta'ala has said: "O Prophet! We have sent you as a mercy to all the worlds."