(31) باب التَّقَدُّمِ قَبْلَ شَهْرِ رَمَضَانَ
It was narrated from Abu Hurairah that the Messenger of Allah said:
"Do not fast ahead of the month, except for a man who habitually fasts, and that day happenes to be one of his regular fasts." ' (AR)
Reference (AR): Sunan an-Nasa'i 2172 (AR)
In-book reference (AR): Book 22, Hadith 83 (AR)
English translation (AR): Vol. 3, Book 22, Hadith 2174 (AR)