FASTING IN SHA'BAN H 1252 "Once the middle of Sha'ban arrives do not fast during the rest of it." R 1252 Abu Daud and Tirmidhi with a chain up to Abu Hurairah who related that the Messenger of Allah, praise and peace be upon him, said this.
1226- وعن أَبي هريرة رضي الله عنه ، قَالَ : قَالَ رسول الله صلى الله عليه وآله وسلم : "إِذَا بَقِيَ نِصْفٌ مِنْ شَعْبَانَ فَلاَ تَصُومُوا" رواه الترمذي ، وقال : "حديث حسن صحيح" .