صَنَعَ بَعْضُ عُمُومَتِي لِلنَّبِيِّ ـ صلى الله عليه وسلم ـ طَعَامًا فَقَالَ لِلنَّبِيِّ ـ صلى الله عليه وسلم ـ إِنِّي أُحِبُّ أَنْ تَأْكُلَ فِي بَيْتِي وَتُصَلِّيَ فِيهِ . قَالَ فَأَتَاهُ وَفِي الْبَيْتِ فَحْلٌ مِنْ هَذِهِ الْفُحُولِ فَأَمَرَ بِنَاحِيَةٍ مِنْهُ فَكُنِسَ وَرُشَّ فَصَلَّى وَصَلَّيْنَا مَعَهُ .
It was narrated that Anas bin Malik said:
"One of my paternal uncles made some food for the Prophet and said to the Prophet: 'I would like you to eat and perform prayer in my house.' So he went to him, and in his house there was one of these Fahl. He ordered that a corner be swept and water sprinkled in it, then he performed prayer and we prayed with him.'" (Sahih)Abu 'Abdullah bin Majah said: A Fahl is a mat that has become black (through use).
Reported by Ibn Majah (No. 756) and Ahmad (No. 11660, 11855).