Musannaf Ibn Abi Shaybah

Hazrat Hilal bin Yasaf narrates that there was a woman from the tribe of Hamdan who used to glorify Allah and would count on pebbles or seeds. She passed by Hazrat Abdullah, and it was told to him that this woman recites tasbih and counts it on pebbles or seeds. So Hazrat Abdullah called that woman and asked her: Are you the one who recites tasbih and counts it? She replied: Yes! I do so. Then Hazrat Abdullah said: Shall I not guide you to a better act than this? You should remember Allah in this way: Allah is the Greatest, and all abundant praise is for Allah, and morning and evening Allah is free from every defect.