مصنف ابن ابي شيبه
Musannaf Ibn Abi Shaybah
كتاب صلاة التطوع والإمامةBook of Voluntary Prayers and Imamate
في قال: صلهما قبل أن تدخل المسجدThose who say to perform the two sunnahs before entering the mosque
Hadith 6580
٦٥٨٠ - حدثنا ابن علية عن ابن عون قال: ذكرته لإبراهيم فقال: المكتوبة تقضى و (صر) (١) في التطوع.
Ibn Aun reports that I asked Ibrahim about this matter, and he replied that the missed obligatory prayers are to be made up, whereas missed voluntary prayers are not to be made up.
