حَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ مُعَاذٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا شُعْبَةُ، عَنْ أَنَسِ بْنِ سِيرِينَ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ قَالَ رَجُلٌ مِنَ الأَنْصَارِ يَا رَسُولَ اللَّهِ إِنِّي رَجُلٌ ضَخْمٌ - وَكَانَ ضَخْمًا - لاَ أَسْتَطِيعُ أَنْ أُصَلِّيَ مَعَكَ - وَصَنَعَ لَهُ طَعَامًا وَدَعَاهُ إِلَى بَيْتِهِ - فَصَلِّ حَتَّى أَرَاكَ كَيْفَ تُصَلِّي فَأَقْتَدِيَ بِكَ ‏.‏ فَنَضَحُوا لَهُ طَرَفَ حَصِيرٍ كَانَ لَهُمْ فَقَامَ فَصَلَّى رَكْعَتَيْنِ ‏.‏ قَالَ فُلاَنُ بْنُ الْجَارُودِ لأَنَسِ بْنِ مَالِكٍ أَكَانَ يُصَلِّي الضُّحَى قَالَ لَمْ أَرَهُ صَلَّى إِلاَّ يَوْمَئِذٍ ‏.‏

Anas b. Malik reported: A man from the Ansar said: I am a corpulent man-and he was (actually) a fat man; I cannot pray along with you. He prepared food for him and invited him to his house. (he said) (please) pray (here) so that I may see how you pray, and then I would follow you. They (the people) washed one side of their mat. He (the prophet) then got up and prayed two Rak’ahs. Ibn al-Jarud asked Anas b. Malik: would he (the prophet) say the forenoon prayer? He replied: I did not see him offering this prayer except that day. Translation Not Available

Book Ref: Sunan Abi Dawud Book 2 Hadith 657
Web Ref:  Sunan Abi Dawud Book 2 Hadith 657