al-Aswad bin Qays al-Bdy الأسود بن قيس العبدي · The Book of Fasting

the Prophet struck one hand with the other and said: "The month is like this and like this and like this," retaining one finger the third time.

"The Messenger of Allah said: "The month is like this and like this and like this,"' meaning twenty-nine. Yahya bin Saeed and others narrated it from Ismail, from Muhammad bin Sad, from the Prophet.