FIRST HALF OF THE MONTH H 1289 "The Messenger of Allah, praise and peace be upon him, would instruct us to fast on the three white days of every month, meaning the days of the 13th, 14th and 15th (lunar months)." R 1289 Abu Daud with a chain up to Katadah the son of Milhan who related this.
1263- وعن قتادة بن مِلْحَان رضي الله عنه ، قَالَ : كَانَ رسولُ الله صلى الله عليه وآله وسلم يَأمُرُنَا بِصِيَامِ أيَّامِ البِيضِ : ثَلاثَ عَشْرَةَ ، وَأرْبَعَ عَشْرَةَ ، وَخَمْسَ عَشْرَةَ . رواه أَبُو داود .