Hadith 4:513
Zayd ibn al-Hubab narrated to us, from Nafi’, from Ibn Tawus, from his father, that he used to fast a day before it and a day after it, for fear that he might miss it.
حدثنا زيد بن حباب عن نافع عن بن طاوس عن أبيه أنه كان يصومه قبله وبعده يوما مخافة أن يفوته