When any of you breaks wind during prayer, he must withdraw, perform ablution, and repeat the prayer.
Sunan Abi Dawud Book 2, Hadith 616
← Previous Hadith The Prophet (ﷺ) said: Shortening the salutation is sunnah (commendable).

The narrator 'Isa said: Ibn al-Mubarak prohibited me from reporting this tradition as a statement of the Prophet (ﷺ).

Abu Dawud said: I heard Abu 'Umar 'Isa b. Yunus al-Fakhuri al-Ramil saying: When al-Firyabi returned from Mecca, he gave up narrating this tradition as a statement of the Prophet (ﷺ). He said: Ahmad b. Hanbal forbade to report this tradition directly from the Prophet (ﷺ).

Sunan Abi Dawud Book 2, Hadith 615 Next Hadith → The Prophet (ﷺ) said: Cannot any one of you (according to the version of the narrator AbdulWarith) step forward or backward or at his right or left. The version of Hammad added: during prayer; that is, in supererogatory prayer.

Sunan Abi Dawud Book 2, Hadith 617