Is it permissible to fast after mid-Sha'ban, and did the Prophet (peace be upon him) forbid that?

Fasting is prohibited in the second half of Sha'ban (after the fifteenth day), either as a matter of dislike (karaha) or complete prohibition (tahrim), except for those who have a regular habit of fasting, or who connect their fasting with the first half of Sha'ban. The majority of scholars have deemed the hadith prohibiting fasting after mid-Sha'ban weak, and accordingly, they stated: It is not disliked to fast after mid-Sha'ban. A possible wisdom behind this prohibition could be to prevent the fasting person from becoming too weak for the Ramadan fast.