Exegesis of the saying of Allah the Exalted: “And remember Allah during the counted days”

Question:
What is the intended meaning, O Your Eminence, of the saying of Allah the Exalted: [al-Baqarah: 203]?

Answer:
This noble verse concerns the days of Tashreeq; in the first departure and the second departure, Allah the Sublime says: [al-Baqarah: 203]; these are the days of Tashreeq, the eleventh, twelfth, and thirteenth days; the day of the festival is not included among them [al-Baqarah: 203].
The day of the festival is included in the ten days in which remembrance is commanded; the ten days are commanded to be filled with remembrance, and the counted days are also commanded to be filled with remembrance; they are all thirteen days, and remembrance is prescribed in all of them from the beginning to the end; from the first day of the month of Dhu al-Hijjah to the thirteenth day, they are all days of remembrance, takbir, and tahlil.
And it is prescribed for Muslims to perform takbir and tahlil in them, at night and by day, in the mosques, in the roads, in the houses, and in every place.
; meaning: the twelfth day, so there is no sin upon him, : the thirteenth day ; He the Sublime reminded them by this gathering of theirs at 'Arafah, at Muzdalifah, and at Mina, that He will gather them on the Day of Resurrection, so they are gathered to Allah on the Day of Resurrection in a great gathering, not one of them remains, as He the Exalted said: [al-Taghabun: 9], so all people are gathered on the Day of Resurrection together, and recompensed for their deeds; if good, then good, and if evil, then evil.
So this gathering at Mina, 'Arafah, and Muzdalifah, this assembly reminds the sensible person of the Day of Resurrection, and the gathering of the creatures on the Day of Resurrection, perhaps he will prepare for that great day.
And among the pilgrims are those who wish to depart and hasten, and those who do not wish that, so whoever hastens from the twelfth day after the sun has passed its zenith and after the stoning, there is no harm, and whoever delays until he stones on the thirteenth day after the sun has passed its zenith, there is no harm, and it is better; because the Messenger (peace and blessings be upon him) delayed and did not depart except on the thirteenth day, peace and blessings be upon him, so the pilgrims are given a choice; whoever wishes may depart on the twelfth day after stoning the three pillars, and he departs to Makkah. Then he is at his option: if he loves to travel, he performs the farewell tawaf before he travels, and if he loves to remain in Makkah for days.
So when he resolves to travel, he performs the farewell tawaf at the time of travel, and the day of the festival is not included among them. So some people make a mistake; they depart on the eleventh day, and say: this is the second day, this is a great error, the day of the festival is not counted among them, the first of them is the eleventh, the Prophet (peace and blessings be upon him) said: ; meaning: the eleventh, twelfth, and thirteenth.