Meaning of the Hadith that states no Kaffarah is obligatory when breaking an oath including the words In sha’a-Allah

Q: What is the meaning of the Hadith in which Allah's Messenger (peace be upon him) said: Whoever says 'If Allah wills' upon taking an oath, will not have to expiate for it if he breaks it.

A: As-hab-ul-Sunan (authors of Hadith compilations classified by jurisprudential themes) narrated on the authority of Ibn `Umar (may Allah be pleased with them both) (Part No. 23; Page No. 144) that Allah's Messenger (peace be upon him) said, Whoever says 'If Allah wills' on taking an oath, will not have to expiate for it if he breaks it. The meaning of the Hadith is that whoever says "If Allah wills" after taking an oath, his oath will not become binding. Hence, if the person takes an oath to do something then says, "If Allah wills" and does not do this thing, he will not have to expiate for breaking his oath. Similarly, if the person swears to give up doing something then says, "If Allah wills" and does not give it up, he will not have to expiate for breaking his oath.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.