I came to the Messenger of Allah ﷺ at al-Abtah while he was in a red tent. Bilal came out and gave the call to prayer, turning his head from side to side as he called, with his fingers in his ears.
حدثنا أيوب بن محمد الهاشمي حدثنا عبد الواحد بن زياد عن حجاج بن أرطاة
أتيت رسول الله ﷺ بالأبطح وهو في قبة حمراء فخرج بلال فأذن فاستدار في أذانه وجعل إصبعيه في أذنيه
[Hasan]. See no. 496 for its defect. The hadith has other routes of transmission in Tirmidhi, no. 197, and elsewhere.