I heard Anas say, "A man from the Ansar, who was a heavy-set man, said, 'I am unable to pray alongside you.' So he prepared food for the Prophet ﷺ and invited him to his home. He spread out a mat for him and sprinkled water on its edge, and the Prophet ﷺ prayed two rakahs upon it."A man from the family of Jarud asked Anas, "Did the Prophet ﷺ use to pray the forenoon prayer?"Anas replied, "I never saw him pray it except on that day."
سمعت أنسا يقول: قال رجل من الأنصار: إني لا أستطيع الصلاة معك وكان رجلا ضخما- فصنع للنبي ﷺ طعاما فدعاه إلى منزله فبسط له حصيرا، ونضح طرف الحصير فصلى عليه ركعتين. فقال رجل من آل الجارود لأنس: أكان النبي ﷺ يصلي الضحى؟ قال: ما رأيته صلاها إلا يومئذ.
Bukhari narrated it in the chapter on adhan (670) from Adam, and in the chapter on tahajjud (1179) from Ali bin Jaad, both of them from Shuba, who said, "Anas bin Sirin narrated to us," and then mentioned it.Ibn Majah (756) and Ibn Hibban (5295) narrated it as well, but they inserted between Anas bin Sirin and Anas bin Malik the name "Abdul-Hameed bin Mundhir bin Jarud." Ibn Hajar said in Fath al-Bari (2/158), "This would imply that there is a break in Bukhari's chain, but this is refuted by the fact that Anas bin Sirin explicitly states that he heard it directly from Anas. In that case, Ibn Majah's narration either represents an addition within an otherwise connected chain, or it contains an error, because Ibn Jarud was present with Anas when he narrated this hadith and asked him about the matter he asked about, so some narrators assumed that he too had a narration of it." End of quote.A note, in Ibn Hajar's words just before this passage he says, "This is because Bukhari related this hadith from the narration of Shuba (as mentioned above), and he also related it in another place from the narration of Khalid Haddan (found in the book of Adab, 6080), both of them from Anas bin Sirin, 'from Abdul-Hameed bin Mundhir bin Jarud, from Anas.'" His statement "from Abdul-Hameed bin Mundhir" is a copyist's error, for if it had truly appeared in Bukhari's second narration with the mention of "Abdul-Hameed bin Mundhir," Ibn Hajar would have had no reason to comment on it afterward. Then, upon returning to the narration of Khalid Haddan, it becomes clear that there is no mention of "Abdul-Hameed bin Mundhir" in that chain at all, so take note.As for his statement "a man from the Ansar," this refers to Itban bin Malik Ansari, since his story closely resembles the one mentioned earlier.