Whence came PBUH?

The phrase "Peace Be Upon Him" (PBUH) is often used in Islamic tradition to show respect and reverence for the Prophet Muhammad ﷺ. The basis for this practice comes from the Qur'an, specifically in Surah Al-Ahzab, where it is stated: Lo! Allah and His angels shower blessings on the Prophet. O ye who believe! Ask blessings on him and salute him with a worthy salutation. 33:56. This verse emphasizes the importance of sending blessings upon the Prophet, indicating that it is a command not only from Allah but also a practice supported by the angels.

Additionally, in the hadith literature, it is narrated that the Prophet Muhammad ﷺ himself encouraged his followers to send blessings upon him. This practice signifies respect and acknowledgment of his role as the messenger of Allah. However, I must clarify that I do not have a specific hadith from Sahih al-Bukhari provided in my sources to further elaborate on this point.

Thus, the origin of using PBUH stems from both the Qur'anic injunctions and the teachings of the Prophet, which together underline its significance in Islamic faith and practice.