Annabi - tsira da amincin Allah su tabbata agare shi - ya bayyana alamar shigar watan Ramadan da kuma fitarsa, sai ya ce: Idan kun ga injirin watan Ramadan to ku azimce shi, idan girgije ya tsare tsakaninku da shi ya ɓuya gareku; to ku ƙirga kwanaki talatin na watan Sha'aban, idan kun ga jinjirin watan Shawwal to ku ajiye azumi, idan girgije ya tsare tsakaninku da shi ya ɓuya gareku; to ku ƙirga kwana talatin ga watan Ramadan.