Ruling on swearing by Allah and His Messenger

Question:

Is it permissible to swear by Allah and His Messenger?

Answer:

It is impermissible to do so, for the Messenger of Allah (peace be upon him) said, “Whoever makes an oath should swear by Allah or else remain silent. (i.e. He should not swear by anyone other than Allah.)” [1] And “Whoever swears by anyone other than Allah is a disbeliever or a Mushrik (one who associates others with Allah in His Divinity or worship).” [2]

May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.

[1] Sahih Al-Bukhari [Book on testimonies] no. 2679; Sahih Muslim [Book on oaths] no. 1646; Al-Tirmidhi [Book on oaths and vows] no. 1534; Abu Dawud [Book on oaths and vows] no. 3249; Al-Muwatta Malik [Book on oaths and vows] no. 1037; Sunan Al-Darimi [Book on oaths and vows] no. 2341.

[2] Al-Tirmidhi [Book on oaths and vows] no. 1535; Abu Dawud [Book on oaths and vows] no. 3251; Musnad Ahmad p.2/69