Musannaf Ibn Abi Shaybah 6312 — In how many garments a woman prays

Ubaydullah al-Khawlani says: I saw the Mother of the Believers, Sayyidah Maymunah (may Allah be pleased with her), praying in a single large shirt that was wrapped all around her, and she had placed part of its sleeve over her head. The narrator says: Ubaydullah al-Khawlani was under the care of Sayyidah Maymunah as an orphan child.