Arabic : Book 5, Hadith 1275
Ibn Majah: Hadith 1218
5. Establishing the Prayer and the Sunnah Regarding Them
سنن ابن ماجه
1218
Ibn Majahحَدَّثَنَا أَبُو بَكْرِ بْنُ خَلاَّدٍ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ مَنْصُورٍ، عَنْ إِبْرَاهِيمَ، عَنْ عَلْقَمَةَ، أَنَّ ابْنَ مَسْعُودٍ، سَجَدَ سَجْدَتَىِ السَّهْوِ بَعْدَ السَّلاَمِ وَذَكَرَ أَنَّ النَّبِيَّ ـ صلى الله عليه وسلم ـ فَعَلَ ذَلِكَ .
It was narrated from "Alqamah that Ibn Mas'ud prostrated twice for the prostrations of forgetfulness after the Salam, and he mentioned that the Prophet (ﷺ) did that."
Reference: English : Vol. 1, Book 5, Hadith 1218
Arabic : Book 5, Hadith 1275
Arabic : Book 5, Hadith 1275