‘Eid-e-Milad-ul Nabi’ Mubarak to Muslim brothers and sisters.
I hope you will rejoice and make this day a day of festive in your life as the day deserves and according to direction of Allah in Quran.
Certainly Prophet (SAW) was ‘Rahmat’ of Allah for all humanity, the greatest blessing of Allah ever for mankind.
This is the day that shatters the feelings of Iblees, his helpers and followers, as they got defeated in their beliefs and design against humanity due to birth, appearance and message of Prophet (SAW).
Their mental torment can be seen from various tactics they use, even at the cost of their lives and property (even suicides), to challenge, torment and punish the followers of Prophet (SAW) remembering Prophet (SAW) and the day he appeared in this world to enlighten us. So, laanat of Allah be on Shaitan, his helpers and followers.
Here is what Allah says in Quran regarding Eid-e-Milad-ul-Nabi:
First thing is to know that Allah has told Muslims that prophet (SAW) is Mercy of Allah to the worlds (Rahmat-ul-lil-Alameen). Obviously, this mercy was given to world by Allah on the day Prophet (SAW), the 'Mercy of Allah' was born, whom Allah referred as 'Rahmal-ul-lil-Alameen'.
Quran 21:107 … And We have not sent you but as a mercy to the worlds.
Now what Allah says regarding what to do with 'Mercy of Allah', when one receives that Mercy (when Allah has sent this Mercy to World) ... that is the day when Prophet (SAW) was born:
Well, Allah commands Muslims (people who received the Mercy of Alalh) to rejoice and celebrate this day of Mercy remembering the Mercy bestowed on them ... as in the words of Quran:
Quran 10:58 … Say: "In the bounty of Allah. And in His Mercy,- in that let them rejoice": that is better than the (wealth) theyhoard.
Well, Allah (from Quran) says that one should rejoice (celebrate) that mercy and spend on that day by spending wealth that is better than hoarding wealth (in other words, make that day a day of festive and rejoice that day) ... or celebrate that day as day of happiness (Eid) ... hence 'Eid-e-Milad-ul-Nabi'
Thus, to celebrate and rejoice 'Eid-e-Milad-ul-Nabi' ... or to celebrate and rejoice the day Allah gave humanity Prophet (SAW) as Mercy ... is command of Allah. It is command for those who are Muslim, consider Quran as words of Allah, and consider Prophet (SAW) as Mercy (Rahmat) of Allah.