Hadith 8:1634
Abu Bakr narrated to us, he said: Isma'il bin Ibrahim narrated to us, from Ibn 'Awn, who said: They used to ask Muhammad [bin Sirin] about going to the mosque on the evening of 'Arafah, and he would say: "I do not see any harm in it." He himself used to sit in his house, and his conversation on that evening was the same as his conversation on all other days.
حدثنا أبو بكر قال حدثنا إسماعيل بن إبراهيم عن بن عون قال كانوا يسألون محمدا عن إتيان المسجد عشية عرفة فيقول لا أعلم به بأسا فكان يقعد في منزله فكان حديثه في تلك العشية حديثه في سائر الأيام