(19) باب السَّهْوِ فِي الصَّلاَةِ وَالسُّجُودِ لَهُ
'Abdullah b. Mas'ud reported:
The Apostle of Allah (ﷺ) performed two prostrations for forgetfulness after salutation and talking. (IT)
Reference (IT): Sahih Muslim 572 m (IT)
In-book reference (IT): Book 5, Hadith 124 (IT)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1180 (IT)