The Muslims’ practice
The followers of Islam have been holding such ceremony for a long time with the aim of refreshing the memory of the Holy Prophet (ṣ).
In Tārīkh al-Khamīs, Ḥusayn ibn Muḥammad ad-Diyār Bakrī thus writes:
The Muslims of the world always hold ceremonies during the month of birth of the Prophet, hold banquets, give charity during the nights, express merriment, multiply their good deeds, and take to reciting poems on his birth, and making known his all-encompassing blessings and graces to all.[1]
The things we have mentioned verify the general ruling of the permissibility and merit of commemorating eminent sacred personages which is consistent with the viewpoint of the Qur’an and the practice of Muslims, and the groundlessness of the supposition that holding ceremonies in commemoration of the beloved of God is bid‘ah; for, bid‘ah is something, the particular or general permissibility of which is not inferred from the Qur’an and the Sunnah, whereas the general judgment of the mentioned issue can be noticed in the Qur’anic verses and perennial practice of the Muslims.
In the same vein, holding such ceremonies is intended to express honor and respect to the meritorious servants of God with the belief in their servitude to and neediness of the Lord of the worlds.
Therefore, the said practice is completely compatible with the principle of monotheism and unity of God.
As such, it is evident that the claim of those who say that holding ceremonies in commemoration of eminent sacred people is tantamount to committing polytheism and associating others with God is baseless and unfounded.