أَخْبَرَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، عَنْ مَالِكٍ، عَنْ إِسْحَاقَ بْنِ عَبْدِ اللَّهِ بْنِ أَبِي طَلْحَةَ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّ جَدَّتَهُ، مُلَيْكَةَ دَعَتْ رَسُولَ اللَّهِ صلى الله عليه وسلم لِطَعَامٍ قَدْ صَنَعَتْهُ لَهُ فَأَكَلَ مِنْهُ ثُمَّ قَالَ ‏"‏ قُومُوا فَلأُصَلِّيَ لَكُمْ ‏"‏ ‏.‏ قَالَ أَنَسٌ فَقُمْتُ إِلَى حَصِيرٍ لَنَا قَدِ اسْوَدَّ مِنْ طُولِ مَا لُبِسَ فَنَضَحْتُهُ بِمَاءٍ فَقَامَ رَسُولُ اللَّهِ صلى الله عليه وسلم وَصَفَفْتُ أَنَا وَالْيَتِيمُ وَرَاءَهُ وَالْعَجُوزُ مِنْ وَرَائِنَا فَصَلَّى لَنَا رَكْعَتَيْنِ ثُمَّ انْصَرَفَ ‏.‏

It was narrated from Anas bin Malik, that his grandmother Mulaikah invited the Messenger ofAllah (PBUH) to come and eat some food that she had prepared for him. Then he said: "Get up and I will lead you in prayer." Anas said: "So I got up and brought a reed mat of ours that had turned black from long use, and spreaded somewater on it. The Messenger of Allah (PBUH) stood and the orphan and I stood in a row behind him, and the old woman stood behind us, and he led us in praying two Rak'ahs, then he left." Translation Not Available

Book Ref: Sunan An Nisai Book 10 Hadith 801
Web Ref:  Sunan An Nisai Vol 1 Book 10 Hadith 802