It is narrated from Sayyidah Aishah (may Allah be pleased with her): "She saw no harm or objection in a person moving his ring from one finger to another (during the prayer, to keep count of the units) so that by it he could preserve his memory of (the count of) his prayer."
The chain of this report contains an unnamed (unknown) narrator; Musaddad recorded it.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / صفة الصلاة / 514
Hadith Gradingمحدثین:إسناده ضعيف
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :إسناده ضعيف. » «انفرد به المصنف من هذا الطريق»