We start in the Name of Allah subhanahu wa-ta^ala, The Most-Merciful and Forgiving of all those who show mercy and forgive. We praise Allah and thank Him for the blessing of Islam. And we humbly ask Allah to shower His peace and blessings on our noble and humble Prophet Muhammad, the Prophet sent as a mercy to all of mankind, the truthful and trustworthy, the most handsome, courageous, and loved Prophets to Allah subhanahu wa-ta^ala, and may Allah protect his nation from that which he feared for them.
Brothers and sisters in Islam;
The day of ^Id is a great and glorious day. ^Id -day is an occasion of happiness and joy. As Muslims, joy and happiness in this world is felt when we apply all efforts to obey Allah and perform good deeds that gain reward and success in the Hereafter.
Allah ta^ala said:
قُلْ بِفَضْلِ اللَّهِ وَبِرَحْمَتِهِ فَبِذَلِكَ فَلْيَفْرَحُوا هُوَ خَيْرٌ مِمَّا يَجْمَعُونَ
Ayah 58 of Surat Yunus means: Say let them rejoice in the bounty of Allah and His mercy; it is better than what they collect and gather.
Abu dawud, An-Nasa’iyy, Ahmad and others narrated that Anas Ibn Malik said: During the Era of Ignorance (Jahiliyyah) the people had aimless fun during two specific days of every year. Then the Prophet said after his arrival to Madinah:
" كَانَ لَكُمْ يَوْمَانِ تَلْعَبُونَ فِيهِمَا وَقَدْ أَبْدَلَكُمْ اللَّهُ بِهِمَا خَيْرًا مِنْهُمَا يَوْمَ الْفِطْرِ وَيَوْمَ الأضْحَى "
You had two days in which you had aimless fun. Know that Allah has replaced them with better ones; the day of ^Id al-Fitr and the day of ^Id al-Adha.
So Allah replaced the two days of fun that had no purpose with two days of meaningful joy which include dhikr (mentioning Allah), praising Allah, a lot of mercy and forgiveness.
In this world, Muslims experience three festivities; a festive day that comes once a week and two other festivities during the year, each of which comes only once a year.
The festive day that comes once a week is Friday. It occurs after the completion of the five obligatory prayers throughout the day and night for the whole week. It is also the day when the last kind of creation was brought into existence i.e. the creation of Adam. Moreover, it is the day when Adam was sent out of Paradise and the day in which this world will come to its end and the Day of Judgement will begin.
As for the other two festivities, that happen annually; the first of which is ^Id al-Fitr celebrated straight after fasting the month of Ramadan. Muslims after performing the obligatory fasting of the month of Ramadan become more deserving of Allah’s forgiveness and protection from Hellfire. Thus, Allah has specified for the Muslims upon their completion of fasting a festive day in which they gather to thank Allah, glorify and praise Him. Allah allocated also on that day for the Muslims a specific prayer (Salatul-^Id) and a specific donation (sadaqah).
As for the other ^Id, it is the day of ^Id al-Adha after the completion of pilgrimage (Hajj) when Muslims become due for forgiveness. Hajj would not be complete without fulfilling the integral of being present at the land of ^Arafah during a specific time. Moreover, for all Muslims around the world whether pilgrims or non-pilgrims the day of ^Arafah is the day of protection from Hellfire. Thus, the day after it which is the day of ^Id al-Adha became a festive day for all Muslims around the world in which they slaughter animals to feed to the poor as a sign of their thankfulness to Allah subhanahu wa ta^ala.
^Umar Ibn al-Khattab and Ibn ^Abbas, may Allah raise their rank referred also to the day of ^Arafah as another festive day .
Brothers and sisters, these are the festive days for Muslims in this world, and they all come after the completion of acts of obedience to Allah subhanahu wa ta^ala.
It is mentioned by some of the righteous slaves of Allah: “The pure purpose of Eid is not for those who decorate themselves by purchasing new clothing but rather it is for those who fear the Day of Judgement and were forgiven by Allah subhanahu wa-ta^ala.”
Their intention is not to dispraise the sunnah of wearing the best of one’s clothing on Eid, but rather to remind the slaves of Allah that a person should not drown in sins even though he is wearing new clothing, but rather to be obedient to his Creator.
In the end, I remind you that Imam al-Hasan, the son Aliyy may Allah raise their ranks said: Every day in which a person has not disobeyed Allah, is a festive day for that person.