Bulugh al-Maram
Book 2, Hadith 409
Arabic hadith text
وَعَنْهُ مَرْفُوعًا: { لَيْسَ فِي صَلَاةِ اَلْخَوْفِ سَهْوٌ } أَخْرَجَهُ اَلدَّارَقُطْنِيُّ بِإِسْنَادٍ ضَعِيفٍ 1 .1 - ضعيف. رواه الدارقطني (2/58/1) وضعفه.
Translation
Narrated [Ibn 'Umar (RA)]
(This Hadith is) attributed to the Prophet (ﷺ) "There is no Sahw (prostration for forgetfulness) in the prayer in time of danger."[ad-Daraqutni reported it through a weak chain of narrators].