Is the phrase "for my life" a valid oath?

Question:
"For my life"?

Answer:
"For my life" is not a valid oath; it does not carry the ruling of an oath. So if one says, "For my life, I will certainly do such-and-such," or "For my life, I will not do such-and-such," there is no blame on him. A hadith regarding this was reported from the Prophet (peace and blessings be upon him), and Ibn Abbas and a group of the Salaf used to say it.
Q: What hadith was reported regarding "for my life"?
The Shaykh: There is nothing wrong with it; a hadith was reported stating there is nothing wrong with it.
Q: "For your life"?
The Shaykh: "For your life" is likewise.
Q: "For the life of Allah"?
The Shaykh: "For the life of Allah" is likewise, yes.
Q: Does it count as an oath?
The Shaykh: It does not carry the ruling of an oath for which the person is required to pay expiation.
Q: Is it for emphasizing speech?
The Shaykh: It is in the category of emphasizing speech, yes.