Hadith 4:248
Hafs narrated to us, from Ibn Jurayj, from ‘Ata’, from Ibn ‘Abbas and Abu Hurayrah, they both said: There is no harm in making up [the missed days of] Ramadan separately.
حدثنا حفص عن بن جريج عن عطاء عن بن عباس وأبي هريرة قالا لا بأس بقضاء رمضان متفرقا