Jabir bin Abdullah reported,

The Messenger of Allah ﷺ said, "Whoever says when he hears the call to prayer, 'O Allah, Lord of this perfect call and the prayer about to be established, grant Muhammad the means and the excellence, and raise him to the praiseworthy station that You have promised him,' my intercession will be granted to him on the Day of Resurrection."

Azami 10985

Sahih

عن جابر بن عبد الله

أن رسول الله ﷺ قال: من قال حين يسمع النداء: اللهم رب هذه الدعوة التامة والصلاة القائمة، آت محمدا الوسيلة والفضيلة، وابعثه مقاما محمودا الذي وعدته، حلت له شفاعتي يوم القيامة.

الأعظمي 10985صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Supplications, remembrances, and prayer upon the chosen Prophet ﷺ
Chapter
Supplications of adhan and prayer, and what is related to them
Section
What to say upon hearing the call to prayer
Numbering
Jami al-Kamil 10985 (2nd edition)
Azami 10985