Sayyiduna Abu Bakrah (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) said to his servant (that is, a slave-woman): Hand me the mat from the mosque. The slave-woman said: I am menstruating. The Prophet (peace and blessings be upon him) said: Hand it to me (anyway)!
Imam al-Tabarani recorded it in al-Mu'jam al-Kabir, and its narrators have been declared trustworthy.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الطهارة / 1559