Hadith 69

Sunan an-Nasa'i

Book 13: The Book of Forgetfulness (In Prayer) Sahih

Chapter 25

Estimating (what is most likely the case)

باب التَّحَرِّي

Sahih
Sunan an-Nasa'i 1247
أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ، عَنِ ابْنِ عَوْنٍ، عَنْ إِبْرَاهِيمَ، قَالَ كَانُوا يَقُولُونَ إِذَا أَوْهَمَ يَتَحَرَّى الصَّوَابَ ثُمَّ يَسْجُدُ سَجْدَتَيْنِ ‏.‏
It was narrated that Ibrahim said:

"They used to say: 'If one is not sure of what he estimates is correct, then prostrate twice.'"