(11) باب فِي مَنْ نَامَ عَنِ الصَّلاَةِ، أَوْ نَسِيَهَا
This tradition has also been transmitted through another chain of narrators by Dhu Mikhbar, the nephew of the Negus. This version adds:
"He (Bilal) called for prayer unhurriedly."
Reference: Sunan Abi Dawud 446
In-book reference: Book 2, Hadith 56
English translation: Book 2, Hadith 446