(125) باب السَّكْتَةِ عِنْدَ الاِفْتِتَاحِ
Narrated Samurah ibn Jundub:
I remember from the Messenger of Allah (ﷺ) two periods of silence. Sa'id said: We asked Qatadah: What are those two periods of silence? He said: (one) when he began his prayer, and (one) when he finished the recitation. Then he added: When he finished reciting (the closing verse of the Fatihah): "Not of those with whom Thou art angry, nor of who go astray."
Reference: Sunan Abi Dawud 780
In-book reference: Book 2, Hadith 390
English translation: Book 3, Hadith 779