Abu Burda bin Abu Musa Ashari reported,

Abdullah Ibn Umar said to me, "Did you hear your father narrate from the Messenger of Allah ﷺ concerning the special hour of Friday?"I replied, "Yes, I heard him say, 'I heard the Messenger of Allah ﷺ say, "It is between the time the imam sits down and the time the prayer is concluded."'"

Azami 10934

Sahih

عن أبي بردة بن أبي موسى الأشعري، قال

قال لي عبد الله ابن عمر: سمعت أباك يحدث عن رسول الله ﷺ في شأن ساعة الجمعة؟ قال: قلت: نعم، سمعته يقول: سمعت رسول الله ﷺ يقول: هي ما بين أن يجلس الإمام إلى أن تقضى الصلاة.

الأعظمي 10934صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Supplications, remembrances, and prayer upon the chosen Prophet ﷺ
Chapter
Rulings on supplication
Section
Times and conditions in which acceptance of supplication is hoped for
Numbering
Jami al-Kamil 10934 (2nd edition)
Azami 10934