Hadith 68

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 1246
أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ، عَنْ مِسْعَرٍ، عَنِ الْحَكَمِ، عَنْ أَبِي وَائِلٍ، عَنْ عَبْدِ اللَّهِ، قَالَ مَنْ شَكَّ أَوْ أَوْهَمَ فَلْيَتَحَرَّ الصَّوَابَ ثُمَّ لْيَسْجُدْ سَجْدَتَيْنِ ‏.‏
It was narrated that 'Abdullah said:

"Whoever has doubt, or is not sure, let him estimate what is correct, then let him prostrate twice."