Is it sin to categorize yourself into a particular sect?

The Qur'an addresses the issue of division among believers in several verses, emphasizing the importance of unity in faith. In Surah Al-Muminoon, it states: But they (mankind) have broken their religion among them into sects, each group rejoicing in its tenets. 23:53 This reflects a clear warning against the fragmentation of faith into various sects, suggesting that such divisions are not favored.

Additionally, in Surah Ar-Room, it is mentioned: Of those who split up their religion and became schismatics, each sect exulting in its tenets. 30:32 This echoes the sentiment that dividing religion leads to discord among believers.

Ibn Kathir explains that this division is seen as a serious issue, as it leads to differing beliefs and practices that stray from the original teachings of Islam. He notes that the followers of various religions before Islam also split into sects, and this trend has continued in the Muslim community. Therefore, he emphasizes that each sect claims to follow the truth, but in reality, such divisions are misguided except for one group that adheres to the original teachings of the Qur'an and the Sunnah.

From the Shia perspective, Al-Mizan highlights that those who divide their religion into parts and become sects are warned against, indicating that such divisions are not aligned with the true message of Islam.

Thus, categorizing oneself into a particular sect can be seen as problematic, as it may lead to division and conflict within the Muslim community, which the Qur'an advises against. The emphasis is on following the teachings of the Prophet Muhammad ﷺ and the unity of the Muslim Ummah over sectarian divisions.