Sunan Ibn Majah The Book On The Mosques And The Congregations Abu Rafi' Ma'amr bin Muhammad bin 'Ubaidullah معمر بن محمد بن عبيد الله بن أبي رافع Muhammad bin 'Ubaidullah bin Abi Rafi' محمد بن عبيد الله بن أبي رافع Ubaidullah bin Abi Rafi' عبيد الله بن أبي رافع “We used to sleep in the mosque at the time of the Messenger of Allah.” https://parallelquran.com/hadith/sunan-ibn-majah-485/