(6) باب إِذَا أُغْمِيَ الشَّهْرُ
Narrated Aisha, Ummul Mu'minin:
The Messenger of Allah (ﷺ) used to count the days in Sha'ban in a manner he did not count any other month; then he fasted when he sighted the new moon of Ramadan; but if the weather was cloudy he counted thirty days and then fasted. (IT)
Reference (IT): Sunan Abi Dawud 2325 (IT)
In-book reference (IT): Book 14, Hadith 13 (IT)
English translation (IT): Book 13, Hadith 2318 (IT)