Ibrahim preferred that when a person gives a gift, he should make it effective (put it into effect).

Hazrat Muhammad bin Qais narrates that I said to Hazrat Saeed bin Al-Musayyib, "I have sworn an oath that if I speak to this companion of mine, I will walk to Makkah Mukarramah with this sheet of mine." He said, "Are you regretful about it?" I replied, "Yes." He said, "Go and wear your clothes; the Ka'bah has no need of you or your clothes, and say that Saeed has ordered me." Then I went to Hazrat Qasim bin Muhammad, and he said the same thing that Hazrat Saeed had said. Then, when I left him, his messenger came to me and asked, "Do you have a dirham?" I said, "Yes." He said, "Give it in charity and say that Qasim has ordered me."

Ibrahim says that if a person says, "I have given as a gift a sea," meaning a great amount of wealth, but does not specify the amount, he (Ibrahim) said: He will give as a gift whatever he owns.

Hazrat Ata says that there is an expiation for an oath.