مصنف ابن ابي شيبه
Musannaf Ibn Abi Shaybah
كتاب صلاة التطوع والإمامةBook of Voluntary Prayers and Imamate
من رخص أن يتطوع في مكانهThose who permitted praying nafl in the place of fard prayers
Hadith 6154
٦١٥٤ - حدثنا معتمر عن عبيد (اللَّه) (١) بن عمر قال: رأيت القاسم وسالمًا يصليان الفريضة ثم يتطوعان في مكانهما.
Hazrat Ubaidullah bin Umar says that I saw Hazrat Qasim and Hazrat Salim performing nafl prayers at the same place after offering the obligatory prayer. Nafi' told me that Hazrat Ibn Umar (may Allah be pleased with them) did not consider there to be any harm in this.
