It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that Sayyidah Umm Sulaym (may Allah be pleased with her) requested the Prophet (peace and blessings be upon him) to pray in her house so that they could take it as a place of prayer. So he (peace and blessings be upon him) came to her, to a mat, and it was sprinkled with water; then he (peace and blessings be upon him) prayed on it, and they prayed with him (peace and blessings be upon him).
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21754