Harun ibn 'Abd Allah narrated to us, Rawh ibn 'Ubadah narrated to us, Zakariyya' ibn Ishaq narrated to us, 'Amr ibn Dinar narrated to us that he heard Ibn 'Umar, may Allah be pleased with them both, saying: I heard the Prophet, peace and blessings be upon him, say: "The month is like this, and like this, and like this," and he folded his thumb on the third [time].