ßÊÇÈ ÇáÃíãÇä æÇáäÐæÑ : Hadeeth No:6203 : 'Aisha:
Abu Bakr As-Siddiq had never broken his oaths till Allah revealed the
expiation for the oaths. Then he said, "If I take an oath to do
something and later on I find something else better than the first
one, then I do what is better and make expiation for my oath."...