Narrated Yusayrah, mother of Yasir: The Prophet ﷺ commanded them (the women emigrants) to be regular (in remembering Allah by saying): "Allah is most great"; "Glory be to the King, the Holy"; "there is no god but Allah"; and that they should count them on fingers, for they (the fingers) will be questioned and asked to speak.

Narrated Abdullah ibn Amr ibn al-As: I saw the Messenger of Allah ﷺ counting the glorification of Allah on fingers. Ibn Qudamah said (in his version: "With his right hands".