مختصر صحيح بخاري
Mukhtasar Sahih Bukhari
Book of Prayer
Praying wrapped in a single garment is permissible
Lady Umm Hani bint Abi Talib (may Allah be pleased with her) says that on the day of the conquest of Makkah, the Noble Prophet (peace and blessings of Allah be upon him) wrapped himself in a single cloth and performed eight units (rak‘ahs) of (Duha) prayer.