He used to give the call to prayer on Friday during the time of the Messenger of Allah ﷺ when the shadow was the length of a sandal strap.
حدثنا هشام بن عمار حدثنا
أنه كان يؤذن يوم الجمعة على عهد رسول الله ﷺ إذا كان الفيء مثل الشراك
No references are available.
[Its chain of transmission is daif]. Busiri said, "This chain is daif. They agreed on grading Abdul-Rahman as daif. As for his father, Ibn Qattan said his condition is unknown, as is his father's condition."