Is swearing an oath by divorce a form of minor shirk?

Question:
He says: Honorable Shaykh, may Allah grant you success, is swearing an oath by divorce considered minor shirk?

Answer:
No, no, it is not shirk. It is considered an oath because it functions like an oath, in that it is intended to prohibit, encourage, verify, or deny. It functions like an oath. As for whether it falls under the category of one who swears by other than Allah, and thus commits disbelief or shirk, no, because that is limited to swearing by the letter "waw," the letter "ta," or the letters of oath. This does not contain the letters of oath. The letters of oath are "Wallah," "Tallah," and "Bi-Allah." These are the letters of oath. Yes.