There is no definitive text in this matter to settle the disagreement among the scholars. Since that is the case, there is flexibility in it: if you wish, say the takbir in pairs; if you wish, say it an odd number of times; and if you wish, say it an odd number of times in the first phrase and in pairs in the second.
Issue: It says in al-Rawḍ: “There is no harm in saying to another, ‘May Allah accept from us and from you,’ as a response.” That is, on Eid, there is no harm in saying to someone else, “May Allah accept from us and from you,” or, “Blessed Eid,” or, “May Allah accept your fasting and night prayers,” or similar expressions, because this has been reported as the practice of some of the Companions (1), may Allah be pleased with them, and there is nothing objectionable in it.
He said: “Likewise, there is no harm in the gathering for remembrance on the eve of Arafah in the towns, because it consists of remembrance and supplication; and the first to do it were Ibn Abbas and Amr ibn Hurayth” (2). Gathering for remembrance on the eve of Arafah in the towns means that, near the end of the day, people gather in the mosques for remembrance of Allah and supplication, in imitation of the people at Arafah.
The correct view is that there is harm in this and that it is among the religious innovations. If this is authentically reported from Ibn Abbas, then perhaps it was on a limited scale with his family while he was fasting that day.