There should be a bedding for a man. a bedding for his wife and the third one for the guest, and the fourth one is for the Satan.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لَهُ فِرَاشٌ لِلرَّجُلِ وَفِرَاشٌ لاِمْرَأَتِهِ وَالثَّالِثُ لِلضَّيْفِ وَالرَّابِعُ لِلشَّيْطَانِ  

"A bed for a man, a bed for his wife, a third for his guest and the fourth is for the Shaitan."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ فِرَاشٌ لِلرَّجُلِ وَفِرَاشٌ لأَهْلِهِ وَالثَّالِثُ لِلضَّيْفِ وَالرَّابِعُ لِلشَّيْطَانِ  

The Messenger of Allah ﷺ mentioned bedding and said: There should be bedding for a man, bedding for his wife, and third for a guest, but a fourth for the devil.  

ذَكَرَ رَسُولُ اللَّهِ ﷺ الْفُرُشَ فَقَالَ فِرَاشٌ لِلرَّجُلِ وَفِرَاشٌ لِلْمَرْأَةِ وَفِرَاشٌ لِلضَّيْفِ وَالرَّابِعُ لِلشَّيْطَانِ  

The Messenger of Allah ﷺ mentioned bedding and said: There should be bedding for a man, bedding for his wife, and third for a guest, but a fourth for the devil. (Using translation from Abū Dāʾūd 4142)   

قَالَ رَسُولُ اللهِ ﷺ فِرَاشٌ لِلرَّجُلِ وَفِرَاشٌ لِلْمَرْأَةِ وَفِرَاشٌ لِلضَّيْفِ وَالرَّابِعُ لِلشَّيْطَانِ  

There should be a bedding for a man. a bedding for his wife and the third one for the guest, and the fourth one is for the Satan. (Using translation from Muslim 2084)  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ «فِرَاشٌ لِلرَّجُلِ وَفِرَاشٌ لِامْرَأَتِهِ وَالثَّالِثُ لِلضَّيْفِ وَالرَّابِعُ لِلشَّيْطَانِ»  

There should be a bedding for a man. a bedding for his wife and the third one for the guest, and the fourth one is for the Satan. (Using translation from Muslim 2084)   

عَنْ جَابِرِ بْنِ عَبْدِ اللهِ إِنَّ رَسُولَ اللهِ ﷺ يَقُولُ «فِرَاشٌ لِلرَّجُلِ وَفِرَاشٌ لِامْرَأَتِهِ وَالثَّالِثُ لِلضَّيْفِ وَالرَّابِعُ لِلشَّيْطَانِ»