Abu Saeed Khudri reported,

The Prophet ﷺ said, "How can I find ease when the bearer of the Horn has already placed it to his lips, bowed his forehead, and inclined his ear, waiting for the command to blow?"The Muslims asked, "Messenger of Allah, what should we say?"He replied, "Say, 'Allah is sufficient for us, and what an excellent Guardian He is. Upon Allah we place our trust.'"

Ahmad 11039

Sahih

حدثنا سفيان عن مطرف عن عطية

عن أبي سعيد

عن النبي ﷺ قال كيف أنعم وقد التقم صاحب القرن القرن وحنى جبهته وأصغى سمعه ينظر متى يؤمر قال المسلمون يا رسول الله فما نقول قال قولوا حسبنا الله ونعم الوكيل على الله توكلنا

أحمد 11039صحيح
Contents
Reference
Commentary
Ayat
Collection
Musnad Ahmad
Book
Abu Saeed Khudri
Numbering
Darussalam 11039
Ahmad 11039