The Ruling on a Woman Traveling Without a Mahram

The Prophet (peace and blessings be upon him) said, “A woman should not travel without a mahram for more than a day and a night” or as he said. So, does the implication of the hadith mean that if it is less than that, it is permissible for her to travel for less than a day and a night?
There is disagreement regarding the specification of a day and a night or more. For this reason, the scholars adopted the general meaning.They said: As long as it was mentioned as a day and a night and three days, it is known that the restriction is not obligatory.