Sunnah.com reference : Book 2, Hadith 409English translation : Book 2, Hadith 482Arabic reference : Book 2, Hadith 484
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].
وَعَنْهُ مَرْفُوعًا: { لَيْسَ فِي صَلَاةِ اَلْخَوْفِ سَهْوٌ }  أَخْرَجَهُ اَلدَّارَقُطْنِيُّ بِإِسْنَادٍ ضَعِيفٍ  1‏ .‏‏1 ‏- ضعيف.‏ رواه الدارقطني (2/58/1)‏ وضعفه.‏