The Messenger of Allah ﷺ said, "The month is like this," and he held up his fingers twice in full, then on the third time folded down his thumb, meaning twenty-nine.
حدثنا محمد بن جعفر حدثنا شعبة عن جبلة سمعت
قال رسول الله ﷺ الشهر هكذا وطبق أصابعه مرتين وكسر في الثالثة الإبهام يعني قوله تسع وعشرون